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CAS No. : | 99-14-9 | MDL No. : | MFCD00002723 |
Formula : | C6H8O6 | Boiling Point : | - |
Linear Structure Formula : | (HO2CCH2)2CHCO2H | InChI Key : | KQTIIICEAUMSDG-UHFFFAOYSA-N |
M.W : | 176.12 | Pubchem ID : | 14925 |
Synonyms : |
|
Chemical Name : | Propane-1,2,3-tricarboxylic acid |
Num. heavy atoms : | 12 |
Num. arom. heavy atoms : | 0 |
Fraction Csp3 : | 0.5 |
Num. rotatable bonds : | 5 |
Num. H-bond acceptors : | 6.0 |
Num. H-bond donors : | 3.0 |
Molar Refractivity : | 36.27 |
TPSA : | 111.9 Ų |
GI absorption : | High |
BBB permeant : | No |
P-gp substrate : | No |
CYP1A2 inhibitor : | No |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -8.26 cm/s |
Log Po/w (iLOGP) : | -0.26 |
Log Po/w (XLOGP3) : | -1.25 |
Log Po/w (WLOGP) : | -0.36 |
Log Po/w (MLOGP) : | -0.68 |
Log Po/w (SILICOS-IT) : | -0.94 |
Consensus Log Po/w : | -0.7 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 1.0 |
Bioavailability Score : | 0.56 |
Log S (ESOL) : | 0.19 |
Solubility : | 270.0 mg/ml ; 1.53 mol/l |
Class : | Highly soluble |
Log S (Ali) : | -0.6 |
Solubility : | 43.8 mg/ml ; 0.249 mol/l |
Class : | Very soluble |
Log S (SILICOS-IT) : | 1.14 |
Solubility : | 2450.0 mg/ml ; 13.9 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 0.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 1.82 |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
42% | With pyridine; In m-xylene; at 140℃; | General procedure: Into a one-necked 25 mL flask, tricarballylic acid (518 mg, 2.95 mmol, 1.0 equiv) and the appropriate anhydride (8.83 mmol, 3 equiv) were suspended in m-xylene (5 mL, 0.6 M). Pyridine was added (47 muL, 0.59 mmol, 0.2 equiv) in one portion, then the mixture was heated to 140 C and stirred until the completion of the reaction was indicated by GC-MS (5-21 h). After cooling to r.t., CH2Cl2 (100 mL) was added and the mixture was passed through a short pad of Celite to remove insoluble side-products. The solution was washed with saturated Na2CO3 solution (2 10 mL) then with brine (10 mL). The organic phase was dried over Na2SO4, filtered, and evaporated to dryness. Purification by flash chromatography (hexanes/EtOAc) afforded the pure Fittig lactone. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With pyridine; triphenyl phosphite; In 1-methyl-pyrrolidin-2-one; at 100℃; for 4h;Product distribution / selectivity; | The procedure of Example 1 was repeated except that 2-methylcyclohexylamine (trans isomer : cis isomer = 90.3 : 9.7, GLC composition %) was used in place of the 2-methylcyclohexylamine with trans isomer content of 100%. Table 1 shows the evaluation results. PTC-2MeCHA obtained by the reaction was 20.3 g (80% yield).; The procedure of Example 1 was repeated except that 2-methylcyclohexylamine (trans isomer : cis isomer = 77.2 : 22.8, GLC composition %) was used in place of the 2-methylcyclohexylamine with trans isomer content of 100%. Table 1 shows the evaluation results. PTC-2MeCHA obtained by the reaction was 20.0 g (79% yield).; The procedure of Example 1 was repeated except that 2-methylcyclohexylamine (trans isomer : cis isomer = 71.9 : 28.1, GLC composition %) was used in place of the 2-methylcyclohexylamine with trans isomer content of 100%. Table 1 shows the evaluation results. PTC-2MeCHA obtained by the reaction was 19.9 g (78% yield).; The procedure of Example 1 was repeated except that 2-methylcyclohexylamine (trans isomer : cis isomer =68.2 : 31.8, GLC composition %) was used in place of the 2-methylcyclohexylamine with trans isomer content of 100%. Table 1 shows the evaluation results. PTC-2MeCHA obtained by the reaction was 19.3 g (76% yield).; The procedure of Example 1 was repeated except that 2-methylcyclohexylamine (trans isomer : cis isomer = 58.9 : 41.1, GLC composition %) was used in place of the 2-methylcyclohexylamine with trans isomer content of 100%. Table 1 shows the evaluation results. PTC-2MeCHA obtained by the reaction was 19.3 g (76% yield).; The procedure of Example 1 was repeated except that 2-methylcyclohexylamine (trans isomer : cis isomer =50.4 : 49.6, GLC composition %) was used in place of the 2-methylcyclohexylamine with trans isomer content of 100%. Table 1 shows the evaluation results. PTC-2MeCHA obtained by the reaction was 18.0 g (71% yield).; The procedure of Example 1 was repeated except that 2-methylcyclohexylamine (trans isomer : cis isomer = 26.4. 73.6, GLC composition %) was used in place of the 2-methylcyclohexylamine with trans isomer content of 100%. Table 1 shows the evaluation results. PTC-2MeCHA obtained by the reaction was 15.5 g (61% yield).; The procedure of Example 1 was repeated except that 2-methylcyclohexylamine (trans isomer : cis isomer = 1.0 : 99.0, GLC composition %) was used in place of the 2-methylcyclohexylamine with trans isomer content of 100%. Table 1 shows the evaluation results. PTC-2MeCHA obtained by the reaction was 11.7 g (46% yield). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80% | With pyridine; triphenyl phosphite; In 1-methyl-pyrrolidin-2-one; at 100℃; for 4h; | In a four-necked 500 ml flask equipped with a stirrer, a thermometer, a condenser and a gas inlet were placed 9.7 g of PTC (0.055 moles) and 100 g of N-methyl-2-pyrrolidone, and the PTC was completely dissolved with stirring under nitrogen atmosphere at room temperature. Subsequently, 20.5 g (0.1815 moles) of 2-methylcyclohexylamine (trans isomer : cis isomer = 100.0 : 0.0, GLC composition %), 56.3 g (0.1815 moles) of triphenyl phosphite, 14.4 g (0.1815 moles) of pyridine and 50 g of N-methyl-2-pyrrolidone were added thereto , and the reaction was carried out with stirring under nitrogen atmosphere for 4 hours at 100C. After cooling, the reaction solution was slowly pored into a mixture of 500 ml of isopropyl alcohol and 500 ml of water, and the resulting mixture was stirred at 40 to 50C for one hour, and white precipitate thus formed was then filtered off. The obtained white solid was washed twice with 500 ml of isopropyl alcohol at 40 to 50C, and dried at 100C and 133 Pa for 6 hours. The obtained dry product was pulverized in a mortar and passed through a standard sieve having openings of 106 mum (JIS Z-8801) to give 20.3g (80%yield) of 1, 2, 3-propanetricarboxylic acid tris(2-methylcyclohexylamide) (hereinafter referred to as "PTC-2MeCHA"). The melting point of the thus obtained white powder and the trans-2-methylcyclohexylamine residue absorbance proportion (Ctrans) were measured. Table 1 shows the evaluation results. Table 1 also shows the characteristic infrared absorptions of the obtained white solid (C=O stretching vibration (amide I absorption band) and N-H deformation vibration (amide II absorption band)), 10% weight reduction temperature and alkali resistance (PWR). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
61% | Comparative Example 1 [Synthesis of Thickening/stabilizing Agent (3) (1,2,3-propanetricarboxylic acid tris(2-methylcyclohexylamide))] (0087) A 100 mL four-necked separable flask equipped with a Dimroth condenser, a nitrogen inlet, a dropping funnel and a thermocouple was charged with 20 mL of pyridine, 2.97 g (0.017 mol) of 1,2,3-propanetricarboxylic acid, and 7.0 g (0.056 mol) of diisopropylcarbodiimide, and the resultant was aged for 3 hours with a temperature within the system set to 50 C. (0088) Thereafter, 5.7 g (0.051 mol) of 2-methylcyclohexylamine was added thereto, and the resultant was aged for another 8 hours. (0089) Then, a low-boiling component of the thus obtained crude liquid was removed with an evaporator, and the resultant was washed with methanol to obtain a pale yellow wet powder. The thus obtained wet powder was washed with acetone to obtain 4.7 g of 1,2,3-propanetricarboxylic acid tris(2-methylcyclohexylamide) (yield: 61%). | |
61% | In a 100 mL four-neck separable flask equipped with a Dimroth condenser, a nitrogen inlet, a dropping funnel and a thermocouple, 20 mL of pyridine, 2.97 g (0.017 mol) of 1, 2, 3-propane tricarboxylic acid, 7.0 g of diisopropyl carbo diimide (0.056 mol) were charged, and the temperature in the system was set at 50 C and aged for 3 hours. Further, 5.7 g (0.051 mol) of 2-methyl cyclohexyl amine was charged and aged for 8 hours. Thereafter, the low boiling fraction of the resulting crude liquid was removed by an evaporator and washed with methanol to obtain light yellow wet powder. Further, the obtained wet powder was washed with acetone to obtain 4.7 g of 1, 2, 3-propane tricarboxylic acid tris (2-methyl cyclohexyl amide) (yield: 61%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With silver nitrate; In potassium hydroxide; water; | EXAMPLE 6 cis(and trans)-1,2-Cyclohexanediamine, compound with [1,2,3-propanetricarboxylato(2-)-O1,O3 ]platinum (1.1) To a suspension of 2 g of cis(and trans)-1,2-cyclohexanediamine compound with platinum chloride in 20 ml of water was added a solution of 1.8 g of silver nitrate in 20 ml of water. This suspension was stirred in the dark for 3 hours and then filtered. To the filtrate was added a solution of 933 mg of 1,2,3-propanetricarboxylic acid in 5.3 ml of 2M potassium hydroxide. This mixture was stirred 1.5 hours and 390 mg of amorphous precipitate collected by filtration. The filtrate was concentrated to 10 ml and the solid collected by filtration giving an additional 1.23 g. These solids were combined, slurried in 25 ml of water and dried giving 1.03 g of the desired product. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In the same manner as in Example 5 except that propane-1,2,3-tricarboxylic acid was used in place of cyclohexene-1,4-dicarboxylic acid and crude propane-1,2,3-tricarbonyl dichloride and propane-1,2,3-tri[N-carbonyl-L-alanine] were charged in amounts of 5.0 mmol and 3.47 mmol, respectively, the entitled compound was prepared. Yielded amount: 1.34 g (1.35 mmol). Yield based on propane-1,2,3-tricarboxylic acid: 17.4 %. H-NMR (deltappm, CDCl3): 1.40-1.70 (m, 27H), 2.70-3.30 (m, 1H), 2.40-2.70 (m, 4H), 2.82 (s, 18H), 2.90-3.20 (m, 12H), 4.18 (m, 3H), 5.70-6.10 (m, 12H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
50% | With pyridine; In m-xylene; at 140℃; | General procedure: Into a one-necked 25 mL flask, tricarballylic acid (518 mg, 2.95 mmol, 1.0 equiv) and the appropriate anhydride (8.83 mmol, 3 equiv) were suspended in m-xylene (5 mL, 0.6 M). Pyridine was added (47 muL, 0.59 mmol, 0.2 equiv) in one portion, then the mixture was heated to 140 C and stirred until the completion of the reaction was indicated by GC-MS (5-21 h). After cooling to r.t., CH2Cl2 (100 mL) was added and the mixture was passed through a short pad of Celite to remove insoluble side-products. The solution was washed with saturated Na2CO3 solution (2 10 mL) then with brine (10 mL). The organic phase was dried over Na2SO4, filtered, and evaporated to dryness. Purification by flash chromatography (hexanes/EtOAc) afforded the pure Fittig lactone. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
72% | After 7.3 mL (100 mmol) of thionyl chloride was dropped into a 0.2 ml dimethylformamide solution of 3.5 g (20 mmol) of 1 , 2 , 3-propanetricarboxylic acid, agitation was performed at 90 C for 2 hours. Subsequently, concentration was performed under reduced pressure, and dilution was performed with 40 mL of dichloromethane. The resulting solution was dropped into a 100 mL dichloromethane solution of 10 mL of triethylamine and 12.2 mL (72 mmol) ofdibutylamine, and agitation was performed for 5 days. After the reaction was completed, dilution was performed with 400 mL of dichloromethane. Subsequently, washing was performed with water, 1 mol/L hydrochloric acid, saturated sodium hydrogen carbonate aqueous solution, and saturated saline solution. After an organic layer was concentrated under reduced pressure, refining was performed with silica gel column chromatography, so as to obtain 7.37 g (yield 72%) of Compound ( 11 ) . ·Analytical result of Compound (11)[1] XH NMR (400 MHz, CDC13, room temperature): delta [ppm] = 0.99 to 0.84 (m, 18H) , 1.69 to 1.23 (m, 24H) , 2.53 to 2.45 (m, 2H) , 2.63 to 2.55 (m, 2H) , 3.31 to 3.12 (m, 10H) , 3.46 (t, 2H, J = 8.01 Hz), 3.75 to 3.68 (m, 1H)[2] Mass analysis (ESI-TOF) : m/z = 510.4699 (M+H)+ | |
72% | 7.3 mL (100 mmol) of thionyl chloride was dropped into 0.2 mL of dimethylformamide solution of 3.5 g (20 mmol) of 1,2,3-propanetricarboxylic acid, then the solution was stirred at 90 C. for 2 hours. After concentrating under reduced pressure, the solution was diluted with 40 mL of dichloromethane. The solution was dropped into 100 mL of dichloromethane solution of 10 mL of triethylamine and 12.2 mL (72 mmol) of dibutylamine, then the mixed solution was stirred for 5 days. After the reaction, the mixture solution was diluted with 400 mL of dichloromethane and washed with water, 1 mol/L hydrochloric acid solution, saturated sodium hydrogen carbonate aqueous solution and saturated sodium chloride solution. The organic layer was concentrated under reduced pressure, then the residue was purified with silica gel chromatography to obtain 7.37 g (in 72% yield) of compound. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
20% | With 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride; In methanol; at 20℃; for 72h; | After 12.6 mL (80 mmol) of N, -diethyl-1, 3- diaminopropane and 22.1 g (80 mmol) of 4- (4 , 6-dimethoxy- 1, 3, 5-triazin-2-yl ) -4-methylmorpholinium chloride ( DMT-MM) were added to a 80 ml methanol solution of 3.5 g (20 mmol) of 1 , 2 , 3-propanetricarboxylic acid, agitation was performed at room temperature for 3 days. The reaction solution was concentrated under reduced pressure and, thereafter,refining was performed with silica gel column chromatography, so as to obtain 2.1 g (yield 20%) of Compound (13).Analytical result of Compound (13)[1] XH NMR (400 MHz, CDC13, room temperature): delta [ppm] = 1.02 (tt, 18H, J = 15.57, 6.49 Hz), 1.62 (dt, 6H, J = 17.71, 5.38Hz), 2.17 (s, 2H) , 2.35 (dd, 2H, J = 14.65, 5.04 Hz), 2.54 to 2.44 (m, 18H) , 3.14 to 3.10 (m, 1H) , 3.28 (dq, 6H, J = .25.87, 6.56 Hz), 7.56 (3H, t, J = 5.27 Hz)[2] Mass analysis (ESI-TOF) : m/z = 513.4603 (M+H)+ |
20% | With 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride; In methanol; at 20℃; for 72h; | 12.6 mL (80 mmol) of N,N-diethyl-1,3-diaminopropane and 22.1 g (80 mmol) of 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride (DMT-MM) were added into 80 mL of methanol solution of 3.5 g (20 mmol) of 1,2,3-propanetricarboxylic acid, and then the solution was stirred for 3 days at room temperature.The reaction solution was concentrated under reduced pressure, then the residue was purified with silica gel chromatography to obtain 2.1 g (in 20% yield) of compound (13). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
37% | With boron trioxide; In xylene; for 6h;Reflux; | Addition of 44.5 g (240 mmol) of n-dodecylamine to a 150 ml xylene solution of 13.0 g (120 mmol) of cresol, 7.0 g (40 mmol) of 1 , 2 , 3-propanetricarboxylic acid, and 1.0 g (14.4 mmol) of boric oxide was performed, and heat-refluxing was performed for 6 hours to effect dehydration. After the reaction was completed, concentration was performed under reduced pressure and, then, suspension cleaning wasperformed with 150 mL of acetonitrile through agitation at 50C for 1 hour. Solids were filtrated, so as to obtain 10.0 g (yield 37%) of Compound (4).Analytical result of Compound (4)[1] XH NMR (400 MHz, DMSO-d6, room temperature): delta [ppm] = 0.85 (t, 9H, J = 6.64 Hz), 1.17 (m, 60H) , 2.50 (t, 11H, J = 1.83 Hz), 7.64 (s, 1H) , 8.03 (s, 1H) , 10.8 (s, 1H)[2] Mass analysis (ESI-TOF) : m/z = 676.6414 (M-H) ~ |
37% | With boron trioxide; In 5,5-dimethyl-1,3-cyclohexadiene; for 6h;Reflux; | Cresol 13.0g (120mmol),1,2,3-propane tricarboxylic acid 7.0g (40mmol),It was added to the xylene 150mL solution of boron oxide 1.0g (14.4mmol) n- dodecylamine 44.5g (240mmol),6 hours under heating to reflux after completion of the reaction obtained by dehydration,After concentration under reduced pressure,Acetonitrile 150 mL, was suspended and washed by stirring for 1 hour at 50 C.. The solid was filtered,Compound (4) was obtained 10.0 g (37% yield). Analysis results for compound (4)] |
37% | With boron trioxide; In 5,5-dimethyl-1,3-cyclohexadiene; for 6h;Reflux; | 13.0 g of cresol (120 mmol), 7.0 g of 1,2,3-propanetricarboxylic acid (40 mmol), and 1.0 g of diboron trioxide (14.4 mmol) were dissolved in 150 ml xylene, and 44.5 g of n-dodecyl amine (240 mmol) was added to the xylene solution. The xylene solution was heated and refluxed for 6 hours for dehydration. After the reaction, the solution was concentrated, and then stirred at 50 C. for 1 hour for suspension washing in 150 ml of acetonitrile. The resultant solid was filtered to obtain 10.0 g of compound (4) (in 37% yield). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | With 4-methyl-morpholine; N-(3-dimethylaminopropyl)-N-ethylcarbodiimide; In dichloromethane; at 20℃; | A suspension of 19.4 g (126.3 mmol) of beta-alanine hydrochloride in 150 mL of dichloromethane was prepared, 5.56 g (31.6 mmol) of 1 , 2 , 3-propanetricarboxylic acid, 13.9 mL (126.3 mmol) of N-methylmorpholine, and 24.2 g (126.3 mmol) of l-ethyl-3- (3-dimethylaminopropyl) carbodiimide(EDCI) were added, and agitation was performed at room temperature for a night. After the reaction solution was diluted with 450 mL of dichloromethane, washing wasperformed with water, 1 mol/L hydrochloric acid, saturated sodium hydrogen carbonate aqueous solution, and saturated saline solution. After an organic layer was concentrated under reduced pressure, the residue was washed with ethanol and diethyl ether, so as to obtain 11.2 g (yield 75%) of Compound (12) .Analytical result of Compound (12)[1] XH NMR (400 MHz, CDC13, room temperature): delta [ppm] = 2.07 (dd, 2H, J = 14.88, 6.64 Hz), 2.31 (ddd, 8H, J = 32.06, 15.57, 8.70 Hz), 2.96 to 2.88 (m, 1H) , 3.20 (tt, 6H, J = 19.23, 6.56 Hz), 7.75 (t, 1H, J = 5.72 Hz), 7.85 (t, 2H, J = 5.50 Hz) , 12.19 (s, 3H)[2] Mass analysis (ESI-TOF) : m/z = 388.1697 (M+H)+ |
75% | With 4-methyl-morpholine; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; In dichloromethane; at 20℃; | 19.4 g (126.3 mmol) of beta-alanine hydrochloride was suspended in 150 mL of dichloromethane. 5.56 g (31.6 mmol) of 1,2,3-propanetricarboxylic acid, 13.9 mL (126.3 mmol) of N-methylmorpholine and 24.2 g (126.3 mmol) of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDCI) were added into the suspension, and then the suspension was stirred overnight at room temperature. The reaction solution was diluted with 450 mL of dichloromethane, and then washed with water, 1 mol/L hydrochloric acid solution, saturated sodium hydrogen carbonate aqueous solution and saturated sodium chloride solution. The organic layer was concentrated under reduced pressure, then the residue was washed with ethanol and diethyl ether to obtain 11.2 g (in 75% yield) of compound (12) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75%Spectr.; 9%Spectr. | With hydrogen; In water; at 250℃; under 51755.2 Torr; for 0.833333h; | 420 mg of citric acid monohydrate was dissolved in 20 mL of water, 0.5 mol% of Pd/C (catalyst in powder form) was added and the reactor was flushed 3 times with N2 and 3 times with H2. Then the reactor was loaded with 69 bar H2 and heated to 250C for a period of 50 min . This reaction resulted in the production of mainly methylsuccinic acid (75%) and propane-l,2,3-tricarboxylic acid (9%). Using Pd/C as the catalyst, methylsuccinic acid remains the primary product for the reaction in water at 250C and a pressure of 69 bar H2. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
48%Spectr.; 8%Spectr. | With hydrogen; In water; at 225℃; under 3000.3 Torr; for 0.67h; | General procedure: 42 mg of citric acid monohydrate was dissolved in 2 mL of water; 0.8 eq. of NaOH was added in some of the reactions. 4 mol% of active metal (catalyst in powder form) was added and the reactor was flushed 6 times with N2. Then the reactor was loaded with 4 bar H2 and heated to 225C for a period of 6 h or 40 min. The conversion of citric acid was >99% in all cases. The highest yields in these conditions (67-85%) were obtained with Pd and Rh catalysts. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
40.8 g | With a water separator,thermometer,In a three-neck flask with a condensing tube and stirring device,Add 20g of refined cooking oil,25.0 g o-phenylenediamine and 60 ml xylene,With nitrogen,Heat slowly to 140CThe reaction is 3.5 to 4.0 hours.Gradually warm up to 150160C,After distilling off xylene solvent,Remove the water separator,Instead of vacuum distillation,Pressure control at 200mmHg,Stir the reaction at 175180C for 22.5h,Water and excess reactants are continuously distilled out.Then the system pressure is gradually reduced to 20mmHg,Then continue constant temperature reaction 1.0 ~ 1.5h,Until no low-boiling liquid distilled out during the reaction,After the product cools,Add 80 ml of 10% NaCl aqueous solution to the mixed product and stir well.The mixture was heated to 80 C. and kept warm for 1 h. After cooling and standing for 2.5 h, the upper oily substance was separated with a separatory funnel and washed twice with water. The aqueous layer was separated and the oil phase was dried in vacuo to give a pale yellow fatty benzoimidazoline paste. Solid, product weight 40.8 g. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
48.3 g | In a three-necked flask equipped with a water separator, a thermometer, a condenser, and a stirring device, 30 g of refined waste oil was added.39 g of N-methyl o-phenylenediamine and 70 ml of xylene were passed through nitrogen and slowly heated at 140 C. for 6.5 h. After evacuation at 190-200 mmHg, vacuum distillation was performed for 2.5-3 h and then at 20-25 mmHg. Distillation for 1 ~ 2h, until no liquid flow out, after cooling, add 110ml of 10% NaCl aqueous solution to the mixture and stir, heat the mixture to 80 C and heat 1h, cooled, let stand 2.0h, separated with a separatory funnel The upper oily substance was washed twice with water and the aqueous layer was separated. The oily phase was dried under vacuum to obtain a creamy oily fat-based inhibitor of N-methylbenzimidazoline, weighing 48.3 g |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
49.8 g | In a three-necked flask equipped with a water separator, a thermometer, a condenser, and a stirring device, 30 g of refined waste oil, 43.5 g of N-phenyl o-phenylenediamine, and 80 ml of xylene were added, and nitrogen was introduced, and the mixture was slowly heated to reflux at 140C. 6.5h, 190 ~ 200mmHg, vacuum distillation 2.5 ~ 3h, then under 20 ~ 25mmHg, vacuum distillation 1 ~ 2h, until no liquid outflow After cooling, add 120ml of 10% NaCl aqueous solution to the mixture and mix well, heat the mixture to 80C and insulate1h, cooling, standing for 1.5h, separating the upper oily substance with a separatory funnel, washing twice with water, separating the aqueous layer, and drying the oil phase in vacuum Dry to give an oil-soluble fat-based N-phenyl benzimidazolide cream solid corrosion inhibitor weighing 49.8 g. |
Tags: 99-14-9 synthesis path| 99-14-9 SDS| 99-14-9 COA| 99-14-9 purity| 99-14-9 application| 99-14-9 NMR| 99-14-9 COA| 99-14-9 structure
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P241 | Use explosion-proof electrical/ventilating/lighting/equipment. |
P242 | Use only non-sparking tools. |
P243 | Take precautionary measures against static discharge. |
P244 | Keep reduction valves free from grease and oil. |
P250 | Do not subject to grinding/shock/friction. |
P251 | Pressurized container: Do not pierce or burn, even after use. |
P260 | Do not breathe dust/fume/gas/mist/vapours/spray. |
P261 | Avoid breathing dust/fume/gas/mist/vapours/spray. |
P262 | Do not get in eyes, on skin, or on clothing. |
P263 | Avoid contact during pregnancy/while nursing. |
P264 | Wash hands thoroughly after handling. |
P265 | Wash skin thouroughly after handling. |
P270 | Do not eat, drink or smoke when using this product. |
P271 | Use only outdoors or in a well-ventilated area. |
P272 | Contaminated work clothing should not be allowed out of the workplace. |
P273 | Avoid release to the environment. |
P280 | Wear protective gloves/protective clothing/eye protection/face protection. |
P281 | Use personal protective equipment as required. |
P282 | Wear cold insulating gloves/face shield/eye protection. |
P283 | Wear fire/flame resistant/retardant clothing. |
P284 | Wear respiratory protection. |
P285 | In case of inadequate ventilation wear respiratory protection. |
P231 + P232 | Handle under inert gas. Protect from moisture. |
P235 + P410 | Keep cool. Protect from sunlight. |
Response | |
Code | Phrase |
P301 | IF SWALLOWED: |
P304 | IF INHALED: |
P305 | IF IN EYES: |
P306 | IF ON CLOTHING: |
P307 | IF exposed: |
P308 | IF exposed or concerned: |
P309 | IF exposed or if you feel unwell: |
P310 | Immediately call a POISON CENTER or doctor/physician. |
P311 | Call a POISON CENTER or doctor/physician. |
P312 | Call a POISON CENTER or doctor/physician if you feel unwell. |
P313 | Get medical advice/attention. |
P314 | Get medical advice/attention if you feel unwell. |
P315 | Get immediate medical advice/attention. |
P320 | |
P302 + P352 | IF ON SKIN: wash with plenty of soap and water. |
P321 | |
P322 | |
P330 | Rinse mouth. |
P331 | Do NOT induce vomiting. |
P332 | IF SKIN irritation occurs: |
P333 | If skin irritation or rash occurs: |
P334 | Immerse in cool water/wrap n wet bandages. |
P335 | Brush off loose particles from skin. |
P336 | Thaw frosted parts with lukewarm water. Do not rub affected area. |
P337 | If eye irritation persists: |
P338 | Remove contact lenses, if present and easy to do. Continue rinsing. |
P340 | Remove victim to fresh air and keep at rest in a position comfortable for breathing. |
P341 | If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing. |
P342 | If experiencing respiratory symptoms: |
P350 | Gently wash with plenty of soap and water. |
P351 | Rinse cautiously with water for several minutes. |
P352 | Wash with plenty of soap and water. |
P353 | Rinse skin with water/shower. |
P360 | Rinse immediately contaminated clothing and skin with plenty of water before removing clothes. |
P361 | Remove/Take off immediately all contaminated clothing. |
P362 | Take off contaminated clothing and wash before reuse. |
P363 | Wash contaminated clothing before reuse. |
P370 | In case of fire: |
P371 | In case of major fire and large quantities: |
P372 | Explosion risk in case of fire. |
P373 | DO NOT fight fire when fire reaches explosives. |
P374 | Fight fire with normal precautions from a reasonable distance. |
P376 | Stop leak if safe to do so. Oxidising gases (section 2.4) 1 |
P377 | Leaking gas fire: Do not extinguish, unless leak can be stopped safely. |
P378 | |
P380 | Evacuate area. |
P381 | Eliminate all ignition sources if safe to do so. |
P390 | Absorb spillage to prevent material damage. |
P391 | Collect spillage. Hazardous to the aquatic environment |
P301 + P310 | IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. |
P301 + P312 | IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. |
P301 + P330 + P331 | IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. |
P302 + P334 | IF ON SKIN: Immerse in cool water/wrap in wet bandages. |
P302 + P350 | IF ON SKIN: Gently wash with plenty of soap and water. |
P303 + P361 + P353 | IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. |
P304 + P312 | IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell. |
P304 + P340 | IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. |
P304 + P341 | IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing. |
P305 + P351 + P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
P306 + P360 | IF ON CLOTHING: Rinse Immediately contaminated CLOTHING and SKIN with plenty of water before removing clothes. |
P307 + P311 | IF exposed: call a POISON CENTER or doctor/physician. |
P308 + P313 | IF exposed or concerned: Get medical advice/attention. |
P309 + P311 | IF exposed or if you feel unwell: call a POISON CENTER or doctor/physician. |
P332 + P313 | IF SKIN irritation occurs: Get medical advice/attention. |
P333 + P313 | IF SKIN irritation or rash occurs: Get medical advice/attention. |
P335 + P334 | Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages. |
P337 + P313 | IF eye irritation persists: Get medical advice/attention. |
P342 + P311 | IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician. |
P370 + P376 | In case of fire: Stop leak if safe to Do so. |
P370 + P378 | In case of fire: |
P370 + P380 | In case of fire: Evacuate area. |
P370 + P380 + P375 | In case of fire: Evacuate area. Fight fire remotely due to the risk of explosion. |
P371 + P380 + P375 | In case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion. |
Storage | |
Code | Phrase |
P401 | |
P402 | Store in a dry place. |
P403 | Store in a well-ventilated place. |
P404 | Store in a closed container. |
P405 | Store locked up. |
P406 | Store in corrosive resistant/ container with a resistant inner liner. |
P407 | Maintain air gap between stacks/pallets. |
P410 | Protect from sunlight. |
P411 | |
P412 | Do not expose to temperatures exceeding 50 oC/ 122 oF. |
P413 | |
P420 | Store away from other materials. |
P422 | |
P402 + P404 | Store in a dry place. Store in a closed container. |
P403 + P233 | Store in a well-ventilated place. Keep container tightly closed. |
P403 + P235 | Store in a well-ventilated place. Keep cool. |
P410 + P403 | Protect from sunlight. Store in a well-ventilated place. |
P410 + P412 | Protect from sunlight. Do not expose to temperatures exceeding 50 oC/122oF. |
P411 + P235 | Keep cool. |
Disposal | |
Code | Phrase |
P501 | Dispose of contents/container to ... |
P502 | Refer to manufacturer/supplier for information on recovery/recycling |
Physical hazards | |
Code | Phrase |
H200 | Unstable explosive |
H201 | Explosive; mass explosion hazard |
H202 | Explosive; severe projection hazard |
H203 | Explosive; fire, blast or projection hazard |
H204 | Fire or projection hazard |
H205 | May mass explode in fire |
H220 | Extremely flammable gas |
H221 | Flammable gas |
H222 | Extremely flammable aerosol |
H223 | Flammable aerosol |
H224 | Extremely flammable liquid and vapour |
H225 | Highly flammable liquid and vapour |
H226 | Flammable liquid and vapour |
H227 | Combustible liquid |
H228 | Flammable solid |
H229 | Pressurized container: may burst if heated |
H230 | May react explosively even in the absence of air |
H231 | May react explosively even in the absence of air at elevated pressure and/or temperature |
H240 | Heating may cause an explosion |
H241 | Heating may cause a fire or explosion |
H242 | Heating may cause a fire |
H250 | Catches fire spontaneously if exposed to air |
H251 | Self-heating; may catch fire |
H252 | Self-heating in large quantities; may catch fire |
H260 | In contact with water releases flammable gases which may ignite spontaneously |
H261 | In contact with water releases flammable gas |
H270 | May cause or intensify fire; oxidizer |
H271 | May cause fire or explosion; strong oxidizer |
H272 | May intensify fire; oxidizer |
H280 | Contains gas under pressure; may explode if heated |
H281 | Contains refrigerated gas; may cause cryogenic burns or injury |
H290 | May be corrosive to metals |
Health hazards | |
Code | Phrase |
H300 | Fatal if swallowed |
H301 | Toxic if swallowed |
H302 | Harmful if swallowed |
H303 | May be harmful if swallowed |
H304 | May be fatal if swallowed and enters airways |
H305 | May be harmful if swallowed and enters airways |
H310 | Fatal in contact with skin |
H311 | Toxic in contact with skin |
H312 | Harmful in contact with skin |
H313 | May be harmful in contact with skin |
H314 | Causes severe skin burns and eye damage |
H315 | Causes skin irritation |
H316 | Causes mild skin irritation |
H317 | May cause an allergic skin reaction |
H318 | Causes serious eye damage |
H319 | Causes serious eye irritation |
H320 | Causes eye irritation |
H330 | Fatal if inhaled |
H331 | Toxic if inhaled |
H332 | Harmful if inhaled |
H333 | May be harmful if inhaled |
H334 | May cause allergy or asthma symptoms or breathing difficulties if inhaled |
H335 | May cause respiratory irritation |
H336 | May cause drowsiness or dizziness |
H340 | May cause genetic defects |
H341 | Suspected of causing genetic defects |
H350 | May cause cancer |
H351 | Suspected of causing cancer |
H360 | May damage fertility or the unborn child |
H361 | Suspected of damaging fertility or the unborn child |
H361d | Suspected of damaging the unborn child |
H362 | May cause harm to breast-fed children |
H370 | Causes damage to organs |
H371 | May cause damage to organs |
H372 | Causes damage to organs through prolonged or repeated exposure |
H373 | May cause damage to organs through prolonged or repeated exposure |
Environmental hazards | |
Code | Phrase |
H400 | Very toxic to aquatic life |
H401 | Toxic to aquatic life |
H402 | Harmful to aquatic life |
H410 | Very toxic to aquatic life with long-lasting effects |
H411 | Toxic to aquatic life with long-lasting effects |
H412 | Harmful to aquatic life with long-lasting effects |
H413 | May cause long-lasting harmful effects to aquatic life |
H420 | Harms public health and the environment by destroying ozone in the upper atmosphere |
Sorry,this product has been discontinued.
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