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CAS No. : | 928783-85-1 | MDL No. : | MFCD09260894 |
Formula : | C7H3BrClF3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | QRPRXRQFNNXPBA-UHFFFAOYSA-N |
M.W : | 259.45 | Pubchem ID : | 20269855 |
Synonyms : |
|
Num. heavy atoms : | 12 |
Num. arom. heavy atoms : | 6 |
Fraction Csp3 : | 0.14 |
Num. rotatable bonds : | 1 |
Num. H-bond acceptors : | 3.0 |
Num. H-bond donors : | 0.0 |
Molar Refractivity : | 44.15 |
TPSA : | 0.0 Ų |
GI absorption : | Low |
BBB permeant : | No |
P-gp substrate : | No |
CYP1A2 inhibitor : | Yes |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | Yes |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -4.95 cm/s |
Log Po/w (iLOGP) : | 2.48 |
Log Po/w (XLOGP3) : | 4.13 |
Log Po/w (WLOGP) : | 5.27 |
Log Po/w (MLOGP) : | 4.66 |
Log Po/w (SILICOS-IT) : | 4.17 |
Consensus Log Po/w : | 4.14 |
Lipinski : | 1.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 1.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -4.35 |
Solubility : | 0.0115 mg/ml ; 0.0000442 mol/l |
Class : | Moderately soluble |
Log S (Ali) : | -3.84 |
Solubility : | 0.0378 mg/ml ; 0.000146 mol/l |
Class : | Soluble |
Log S (SILICOS-IT) : | -4.75 |
Solubility : | 0.00456 mg/ml ; 0.0000176 mol/l |
Class : | Moderately soluble |
PAINS : | 0.0 alert |
Brenk : | 0.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 1.71 |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P264-P261-P271-P280-P305+P351+P338-P302+P352-P304+P340-P312-P362+P364-P403+P233-P501 | 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 |
---|---|---|
80% | With caesium carbonate;palladium diacetate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; In toluene; at 85℃; for 16h;Inert atmosphere; | Reference Example 70 1-[3-chloro-5-(trifluoromethyl)phenyl]pyrrolidin-3-ol ; A solution of <strong>[928783-85-1]1-bromo-3-chloro-5-(trifluoromethyl)benzene</strong> (5.0 g), 3-hydroxypyrrolidine (1.85 g), palladium(II) acetate (217 mg), (+/-)-2,2'-bis(diphenylphosphino)-1,1'-binaphthyl (1.2 g) and cesium carbonate (18.8 g) in toluene (96 mL) was stirred under an argon gas atmosphere at 85C for 16 hr. After cooling to room temperature, water was added, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated, and the residue was purified by silica gel column chromatography (hexane/ethyl acetate 80:20 - 10:90) to give the title compound (4.11 g, yield 80%) as a brown oil. 1H-NMR (300 MHz, CDCl3)delta:1.65 (d, J = 3.8 Hz, 1 H), 2.00 - 2.29 (m, 2 H), 3.19 - 3.32 (m, 1 H), 3.38 (td, J = 8.7, 3.4 Hz, 1 H), 3.45 - 3.60 (m, 2 H), 4.58 - 4.72 (m, 1 H), 6.61 (s, 1 H), 6. 63 - 6.68 (m, 1 H), 6.88 (s, 1 H). |
80% | With caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl;palladium diacetate; In toluene; at 85℃; for 16h;Inert atmosphere; | A solution of <strong>[928783-85-1]1-bromo-3-chloro-5-(trifluoromethyl)benzene</strong> (5.0 g), 3-hydroxypyrrolidine (1.85 g), palladium(II) acetate (217 mg), (+/-)-2,2'-bis(diphenylphosphino)-1,1'-binaphthyl (1.2 g) and cesium carbonate (18.8 g) in toluene (96 mL) was stirred under an argon gas atmosphere at 85 C. for 16 hr. After cooling to room temperature, water was added, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated, and the residue was purified by silica gel column chromatography (hexane/ethyl acetate 80:20-10:90) to give the title compound (4.11 g, yield 80%) as a brown oil.1H-NMR (300 MHz, CDCl3) delta: 1.65 (d, J=3.8 Hz, 1H), 2.00-2.29 (m, 2 H), 3.19-3.32 (m, 1H), 3.38 (td, J=8.7, 3.4 Hz, 1H), 3.45-3.60 (m, 2H), 4.58-4.72 (m, 1H), 6.61 (s, 1H), 6.63-6.68 (m, 1H), 6.88 (s, 1H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
78% | In a 500 ml multineck flask with low-temperature thermometer, dropping funnel and argon balloon, 5.5 g (0.228 mol, 1.3 eq) of magnesium turnings (activated with dibromoethane and washed with diethyl ether) were blanketed with 120 ml of diethyl ether. At 0 C., 45.5 g of <strong>[928783-85-1]3-bromo-5-chlorobenzotrifluoride</strong> (0.175 mol, 1 eq) in 120 ml of diethyl ether were slowly added dropwise. The reaction started up of its own accord after a few minutes, with a colour change (red-brown) and heating; the temperature was kept at about 0 C. during the addition. On completion of addition of the bromide, the mixture was stirred for a further 30 min.A separate 2 l 3-neck flask with low-temperature thermometer, dropping funnel and argon balloon was initially charged with 32.4 g of ethyl trifluoroacetate (0.228 mol, 1.3 eq) in 250 ml of diethyl ether, and cooled to -80 C. At this temperature, the Grignard reagent (cooled to -10 C.) was slowly added dropwise. On completion of addition, the reaction mixture was stirred at -80 C. for a further 30 min. Thereafter, the reaction mixture was warmed to -10 C. and acidified with 10% hydrochloric acid. The resulting mixture was admixed with saturated NaCl solution, the phases were separated and the aqueous phase was washed with 200-300 ml of diethyl ether. The combined ethereal phases were dried over magnesium sulphate and the solvent was subsequently removed on a rotary evaporator.The resulting crude product was purified by vacuum distillation (71 C. at 18 mbar). 37.7 g (78% of theory) of 1-[3-chloro-5-(trifluoromethyl)phenyl]-2,2,2-trifluoroethanone were obtained as a colourless oil. This was converted further without further purification. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
12% | With tris-(dibenzylideneacetone)dipalladium(0); sodium t-butanolate; tert-butyl XPhos; In toluene; at 110℃; under 760.051 Torr; for 3h;Inert atmosphere; | In a 25 mL sealed tube, sodium 2-methylpropan-2-olate (62.7 mg, 653 muetaiotaomicron, Eq: 1.20), bis(dibenzylideneacetone)palladium (31.3 mg, 54.4 muetaiotaomicron, Eq: 0.1) and 2-di-tert-butyl(2',4',6'- triisopropylbiphenyl-2-yl)phosphine (23.1 mg, 54.4 muetaiotaomicron, Eq: 0.1) were combined with toluene (5.00 mL) to give a dark brown suspension. N5,N5,l-tris(4-methoxybenzyl)-lH-l,2,4-triazole- 3,5-diamine (250 mg, 544 muetaiotaomicron, Eq: 1.00) and l-bromo-3-chloro-5-(trifluoromethyl)benzene (141 mg, 544 muetaiotaomicron, Eq: 1.00) were added. The reaction mixture was degassed with argon for 15 min, and then heated to 110C for 3 hours. The reaction mixture was cooled and diluted with EtOAc (50 mL), washed with H20 (25 mL) and brine (25 mL). The organic layer was dried over anhydrous MgS04, filtered and volatiles were removed under reduced pressure to yield an oil from which the compound was isolated by column chromatography (Hexanes/EtOAc = 70/30) to give an off-white solid 40 mg (12%). MH+ 638.4 |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Stage #1: 1-bromo-3-chloro-5-(trifluoromethyl)benzene With magnesium In 2-methyltetrahydrofuran at 50 - 60℃; Inert atmosphere; Stage #2: trifluoracetyl chloride In 2-methyltetrahydrofuran at -80℃; Inert atmosphere; | 1.3; 2.3 (3) Synthesis of 3-chloro-5-trifluoromethyltrifluoroacetophenone Under the protection of nitrogen, add 1kg of 2-methyltetrahydrofuran, 24.6g of magnesium chips (1.16eq) and 1g of 1,2-dibromoethane into a 3L three-necked flask, and first add 22.6g of 1-bromo-3-chloro-5-(trifluoromethyl)benzene -(0.1eq, 1eq in total)to it , heated to 50-60°C, after initiation, stop heating, use reaction exotherm to maintain the internal temperature 50-60°C, after the raw materials in the bottle have reacted, Then slowly add the remaining 203.4g of 1-bromo-3-chloro-5-(trifluoromethyl)benzene (0.9eq, 1eq in total), 1-3 hours after the dripping is completed, and then keep the reaction incubation, and monitor 1-bromo- in the gas phase. The progress of the reaction of 3-chloro-5-(trifluoromethyl)benzene, monitoring showed that the reaction proceeded for 2h, and the reaction of 1-bromo-3-chloro-5-(trifluoromethyl)benzene was completed. At this time, the reaction liquid Cool down to 20°C to obtain Grignard reagent solution.Under the protection of nitrogen, under continuous stirring, add 500g of 2-methyltetrahydrofuran to another 3L three-necked flask, then cool to -80 and keep it, and then add 127g of trifluoroacetyl chloride gas (1.1eq), then , Slowly drip the above-mentioned Grignard reagent solution into it, control the internal temperature at -80°C to -70°C, and then keep the reaction for 2 hours after the dripping is completed for 1 to 2 hours to obtain the third reaction solution.The third reaction solution was naturally heated to 20°C, and 1kg of dilute hydrochloric acid solution with a mass concentration of 7% was added dropwise to the third reaction solution. The dripping took 20 minutes, and then 300g of methyl tert-butyl ether was added. The separated organic phase was washed once with 500g saturated sodium chloride solution, dried with anhydrous sodium sulfate, spin-dried, and finally rectified under reduced pressure with a water pump at a top temperature of 82-83°C to obtain 180g of a colorless liquid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
34.45% | With dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II) dichloromethane adduct; anhydrous potassium acetate In 1,4-dioxane at 90℃; for 16h; | 6DD.1 Step 1: Synthesis of 2-(3-chloro-5-(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2- dioxaborolane A mixture of 1-bromo-3-chloro-5-(trifluoromethyl)benzene (19.9 g, 76.70 mmol), 4,4,5,5-tetramethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane (29.22 g, 115.05 mmol) and KOAc (22.58 g, 230.10 mmol, 14.38 mL) in dioxane (300 mL) was degassed with argon for 10 min. Pd(dppf)Cl2*DCM (1 g, 1.22 mmol) was next added and the reaction mixture was heated to 90°C for 16 hr. The reaction mixture was cooled to rt, filtered and concentrated under reduced pressure. The residue was treated with hexane, filtered through thin layer of SiO2 and evaporated to dryness. Crude product was purified by flash chromatography on SiO2 (Hexane:CHCl3) to give 2-[3-chloro-5-(trifluoromethyl)phenyl]-4,4,5,5-tetramethyl- 1,3,2-dioxaborolane (8 26.43 mmol, 34.45% yield). 1H NMR (400 MHz, DMSO-d6) δ (ppm) 1.12 (s, 12H), 7.92 (m, 3H). GCMS: calcd 306.2; found 306.2; Rt = 7.597 min |
34.45% | With dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II) dichloromethane adduct; anhydrous potassium acetate In 1,4-dioxane at 90℃; for 16h; | 6DD.1 Step 1: Synthesis of 2-(3-chloro-5-(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2- dioxaborolane A mixture of 1-bromo-3-chloro-5-(trifluoromethyl)benzene (19.9 g, 76.70 mmol), 4,4,5,5-tetramethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane (29.22 g, 115.05 mmol) and KOAc (22.58 g, 230.10 mmol, 14.38 mL) in dioxane (300 mL) was degassed with argon for 10 min. Pd(dppf)Cl2*DCM (1 g, 1.22 mmol) was next added and the reaction mixture was heated to 90°C for 16 hr. The reaction mixture was cooled to rt, filtered and concentrated under reduced pressure. The residue was treated with hexane, filtered through thin layer of SiO2 and evaporated to dryness. Crude product was purified by flash chromatography on SiO2 (Hexane:CHCl3) to give 2-[3-chloro-5-(trifluoromethyl)phenyl]-4,4,5,5-tetramethyl- 1,3,2-dioxaborolane (8 26.43 mmol, 34.45% yield). 1H NMR (400 MHz, DMSO-d6) δ (ppm) 1.12 (s, 12H), 7.92 (m, 3H). GCMS: calcd 306.2; found 306.2; Rt = 7.597 min |
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