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CAS No. : | 5467-99-2 | MDL No. : | MFCD04347391 |
Formula : | C15H14O2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | LNXGEZSXCGDUSD-UHFFFAOYSA-N |
M.W : | 226.27 | Pubchem ID : | 230518 |
Synonyms : |
|
Num. heavy atoms : | 17 |
Num. arom. heavy atoms : | 12 |
Fraction Csp3 : | 0.13 |
Num. rotatable bonds : | 4 |
Num. H-bond acceptors : | 2.0 |
Num. H-bond donors : | 0.0 |
Molar Refractivity : | 67.17 |
TPSA : | 26.3 Ų |
GI absorption : | High |
BBB permeant : | Yes |
P-gp substrate : | No |
CYP1A2 inhibitor : | Yes |
CYP2C19 inhibitor : | Yes |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | Yes |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -4.61 cm/s |
Log Po/w (iLOGP) : | 2.9 |
Log Po/w (XLOGP3) : | 4.33 |
Log Po/w (WLOGP) : | 3.2 |
Log Po/w (MLOGP) : | 3.67 |
Log Po/w (SILICOS-IT) : | 3.78 |
Consensus Log Po/w : | 3.58 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 0.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -4.23 |
Solubility : | 0.0134 mg/ml ; 0.000059 mol/l |
Class : | Moderately soluble |
Log S (Ali) : | -4.6 |
Solubility : | 0.00573 mg/ml ; 0.0000253 mol/l |
Class : | Moderately soluble |
Log S (SILICOS-IT) : | -5.4 |
Solubility : | 0.000895 mg/ml ; 0.00000395 mol/l |
Class : | Moderately soluble |
PAINS : | 0.0 alert |
Brenk : | 0.0 alert |
Leadlikeness : | 2.0 |
Synthetic accessibility : | 1.65 |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-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 |
---|---|---|
at 210℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
at 160℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1: 70% 2: 90% 3: 1% | In diethyl ether; ethanol at 0℃; for 3h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1: 20% 2: 13% 3: 30% | at 400℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
89% | With triethylamine In acetone at 20℃; Cooling with ice; | |
88% | With triethylamine In diethyl ether for 5h; Heating; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
at 200℃; for 3h; Further byproducts given; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Verseifungsgeschwindigkeit in W.-Dioxan 2:3 (v:v) bei 35grad; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
83% | With 1,8-diazabicyclo[5.4.0]undec-7-ene In benzene at 120℃; for 3h; | |
78% | With Cs2CO3 at 80℃; for 20h; Microwave irradiation; Sealed tube; | |
73% | With triethylamine In benzene at 140℃; for 6h; |
70% | With bis(1,5-cyclooctadiene)nickel (0); 1,10-Phenanthroline; potassium carbonate In N,N-dimethyl-formamide at 130℃; for 36h; Glovebox; | |
39 %Spectr. | With 1,4-diaza-bicyclo[2.2.2]octane; ammonium carbamate In toluene at 95℃; for 24h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
90% | With 1H-imidazole; iodine; chloro-diphenylphosphine In acetonitrile for 5h; Reflux; | |
90% | Stage #1: p-Toluic acid With N-chlorobenzotriazole; triphenylphosphine In dichloromethane for 0.25h; Cooling; Stage #2: benzyl alcohol With triethylamine In dichloromethane at 20℃; for 0.916667h; | Preparation of benzyl benzoate by using PPh3/NCBT General procedure: To a cold solution of PPh3 (0.327 g, 1.25 mmol) in CH2Cl2 (3 mL), freshly prepared NCBT (0.194 g,1.25 mmol) was added with continuous stirring. Benzoic acid (0.122 g, 1 mmol) was then added and stirring was continued for 15 min. Benzyl alcohol (0.270 g, 2.5 mmol) was added and the temperature was raised up to room temperature. The pale yellow solution was neutralized by triethylamine (0.175 mL). Stirring was continued for 40 min at room temperature. The progress of the reaction was followed by TLC. Upon completion of the reaction, the concentrated residue was passed through a short silica-gel column using n-hexane-ethyl acetate (8:1) as eluent. Benzyl benzoate was obtained with 95% yield after removing the solvent under reduced pressure. |
89% | With 2-butyl-1,3-diphenyl-1,3,2-diazaphospholidine; 1,1'-azodicarbonyl-dipiperidine In 1,2-dichloro-ethane at 40℃; |
85% | With dmap; triethylamine; trichlorophosphate In dichloromethane at 20℃; for 2h; | |
78% | With silica gel; zinc trifluoromethanesulfonate for 0.05h; microwave irradiation; | |
69% | With triphenylphosphine In acetonitrile for 6h; Heating; | |
26 % Chromat. | With [Cl(C6F13C2H4)2SnOSn(C2H4C6F13)2Cl]2 In various solvent(s) at 150℃; for 16h; | |
With 5,5'-dimethyl-3,3′-azoisooxazole; triphenylphosphine In acetonitrile Reflux; | ||
86 %Chromat. | With tris(1-glycyl-3-methyl imidazolium chloride-iron(III)) In neat (no solvent) at 25℃; for 6.5h; Green chemistry; | |
With oxalyl dichloride; triethylamine; Triphenylphosphine oxide In acetonitrile at 20℃; for 2h; Inert atmosphere; | 4 A 100 mL three-necked flask was charged with 2.80 g of triphenylphosphine oxide, evacuated to N2, 5 mL of acetonitrile was added,Under the magnetic stirring, 0.63 mL of oxalyl chloride was slowly added dropwise, and the reaction was violent and a large amount of gas was released for 10 minutes. Then 0.68 g of p-methylbenzoic acid, 0.67 mL of benzyl alcohol and a catalytic amount of triethylamine were added,The reaction was carried out at room temperature for 2 hours. The reaction was followed by TLC, quantified by column chromatography and qualitative by NMR.The ratio of developing agent (petroleum ether / ethyl acetate) was 4: 1,The yield of benzyl p-methylbenzoate obtained by column chromatography was 8.25% |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
98% | With 2,6-dimethyl-1,4-benzoquinone In dichloromethane at 20℃; for 0.5h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1: 86% 2: 6% | With samarium In acetonitrile at 70℃; for 0.0333333h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
at 70℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: 98 percent / KSCOCH3; Triton X-405 / 150 °C 2: 70 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: 55 percent / pyridine / diethyl ether / 1 h / 20 °C 2: 98 percent / 2,6-dimethyl-1,4-benzoquinone / CH2Cl2 / 0.5 h / 20 °C | ||
Multi-step reaction with 2 steps 1: 55 percent / pyridine / diethyl ether / 20 °C 2: 98 percent / 2,6-dimethyl-1,4-benzoquinone / CH2Cl2 / 0.5 h / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1: 25 % Chromat. 2: 2 % Chromat. 3: 5 % Chromat. 4: 5 % Chromat. | In benzene-d6 at 20℃; | |
1: 9 %Spectr. 2: 6 %Spectr. 3: 6 %Spectr. 4: 6 %Spectr. | With dimethylbis(η5-pentamethylcyclopentadienyl)thorium In benzene-d6 at 25℃; for 24h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
71% | With trans-di(μ-acetato)bis[o-(di-o-tolylphosphino)benzyl]dipalladium(II); caesium carbonate; XPhos In 1,4-dioxane; benzyl alcohol at 160℃; for 0.333333h; Microwave irradiation; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92% | With methanol; sodium tetrahydroborate; nickel(II) chloride hexahydrate at 20℃; for 0.166667h; chemoselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1: 15 %Spectr. 2: 6 %Spectr. 3: 6 %Spectr. | With dimethylbis(η5-pentamethylcyclopentadienyl)thorium In benzene-d6 at 25℃; for 24h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
70 %Spectr. | In mesitylene-d12 at 35℃; for 144h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: nitrosonium tetrafluoroborate; triethylamine / dichloromethane / 0 °C 2: mesitylene-d12 / 144 h / 35 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1: triethylamine / dichloromethane / 1 h / 20 °C 2: nitrosonium tetrafluoroborate; triethylamine / dichloromethane / 0 °C 3: mesitylene-d12 / 144 h / 35 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
87% | With diethylamine; lithium bromide at 20℃; for 24h; neat (no solvent); |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
67% | Stage #1: 4-methyl-benzaldehyde With 18-crown-6 ether; oxygen; 3,4-dimethylthiazolinium iodide; potassium carbonate In acetonitrile at 20℃; for 0.5h; Stage #2: benzyl bromide In acetonitrile at 20℃; | 4.2. Typical procedure for synthesis of product 4 General procedure: To a flame-dried 25 mL two-neck flask under positive oxygen pressure were added aldehyde 1 (0.2 mmol), thiazolium salt 3 (0.2 mmol), K2CO3 (0.44 mmol), 18-crown-6 (0.132 mmol), and anhydrous oxygen-saturated CH3CN (2 mL). The resulting mixture was stirred at room temperature for 30 min, followed by addition of benzyl halide 2 (0.4 mmol) in 2 mL of CH3CN with a funnel. After completion of the reaction (monitored by TLC), the reaction mixture was filtered and the filtrate was concentrated under reduced pressure. The residue was purified by PTLC (ethyl acetate/petroleum ether=1/40) to give 4. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: bis-triphenylphosphine-palladium(II) chloride; para-bromotoluene; potassium carbonate / tetrahydrofuran / 20 h / 60 °C / Inert atmosphere 2: bis-triphenylphosphine-palladium(II) chloride; potassium carbonate; benzyl chloride / 9 h / 110 °C / Inert atmosphere |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
97% | With bis-triphenylphosphine-palladium(II) chloride; potassium carbonate; benzyl chloride at 110℃; for 9h; Inert atmosphere; chemoselective reaction; | |
97% | With 4-methyl-3-(2,4,6-trimethylphenyl)thiazolium tetrafluoroborate; tetrabutylammomium bromide; 1,8-diazabicyclo[5.4.0]undec-7-ene In acetonitrile at 20℃; for 17h; Inert atmosphere; Electrochemical reaction; | |
90% | With manganese(IV) oxide; caesium carbonate; 1,8-diazabicyclo[5.4.0]undec-7-ene; 1-butyl-3-methylimidazolium Tetrafluoroborate at 20℃; for 24h; Inert atmosphere; | 4.2 General procedure for oxidative esterification of aldehydes General procedure: In a typical procedure, a capped vessel was charged with ionic liquid BmimBF4 (0.5 mL) and put under positive pressure of nitrogen. DBU (0.5 mmol) and Cs2CO3 (1.5 mmol) were added followed by the aldehyde (0.5 mmol) and MnO2 (1.5 mmol). The reaction mixture was stirred for a few minutes and alcohol (1.5 mmol) was added. The reaction mixture was stirred at ambient temperature for 24 h. The mixture was then filtered through a thin pad of silica, which was washed with ethyl acetate (30 mL). The filtrate was analyzed by TLC and 1H NMR and then concentrated under vacuum. The resulting residue was purified by flash chromatography on silica gel where needed. |
With 2-mesityl-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazol-2-ium tetrafluoroborate; tris(2,2′-bipyrazine-N1,N1′)ruthenium(II) hexafluorophosphate; 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidine In acetonitrile at 20℃; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: 4-methyl-3-(2,4,6-trimethylphenyl)thiazolium tetrafluoroborate; tetrabutylammomium bromide; 1,8-diazabicyclo[5.4.0]undec-7-ene / [D3]acetonitrile 2: 4-methyl-3-(2,4,6-trimethylphenyl)thiazolium tetrafluoroborate; tetrabutylammomium bromide; 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 17 h / 20 °C / Inert atmosphere; Electrochemical reaction |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
96% | With di-tert-butyl peroxide; C11H23N2(1+)*Br4Fe(1-) at 110℃; for 24h; | |
91% | With tert.-butylhydroperoxide; 1-(n-butyl)pyridinium iodide In water at 80℃; for 8h; | |
85% | With tert.-butylhydroperoxide; choline chloride; tetra-(n-butyl)ammonium iodide; urea In water at 80℃; for 12h; Green chemistry; | General procedure for the synthesis of benzyl benzoates General procedure: A mixture of carboxylic acid (1 mmol), alkyl benzene (2 mmol), and TBAI (73 mg, 20 mol%), in ChCl/urea (0.5 mL), was placed in the two-necked round-bottomed flask fitted with a condenser under an air atmosphere at room temperature. Then, TBHP (70% aqueous solution, two equiv.) was added to the reaction vessel and the mixture was placed in an oil bath with magnetic stirring at 80 °C. After completion (12 h), the reaction mixture was cooled to room temperature and quenched by addition of a saturated solution of sodium thiosulfate and then the organic compound was extracted with ethyl acetate (2 × 10 mL). The combined ethyl acetate layers were dried with anhydrous Na2SO4 and filtered. The solvent was evaporated under reduced pressure to give the crude mixture, which was purified by column chromatography on silica gel (n-hexane/ethyl acetate, 20:1v/v) to afford the desired product 5. |
82% | With N,N-dimethyl acetamide; trifluorormethanesulfonic acid; oxygen; palladium diacetate at 115℃; for 24h; Schlenk technique; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
71 %Chromat. | With tert.-butylhydroperoxide; sodium dihydrogenphosphate; tetra-(n-butyl)ammonium iodide In water; acetonitrile at 80℃; for 36h; Schlenk technique; | General procedure for the aerobic oxidative esterificationreactions General procedure: Alcohol (0.50 mmol), hydrocarbon (10 mmol, 20 equiv), NaH2PO4 (74 mg, 97%, anhydrous, 0.6mmol, 1.2 equiv), Bu4NI (36.9 mg, 0.10mmol, 20 mol %), TBHP (70% aqueous solution, 0.42 mL,3.0 mmol, 6 equiv) and MeCN (2 mL) were added into a Schlenk flask with a high vacuum valve (V = 45 mL) fitting in a Radleys parallel synthesis station.1 The solution was stirred vigorously and heated at 80 oC for 36 hours. After it was cooled down to room temperature, 5 mL of water was added and the products were extracted by 15 mL of chloroform for three times. After dried by anhydrous MgSO4,the solution was diluted with methanol to 25.00 mL for GC test. The ester products for GC standard curves were synthesized independently following the reported procedures.2 |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1.1: lithium chloride; magnesium / tetrahydrofuran / 2 h / 20 °C / Inert atmosphere 1.2: 0.5 h / 0 °C / Inert atmosphere 1.3: 2 h / 20 °C / Inert atmosphere 2.1: triethylamine / tetrahydrofuran / 1 h / 20 °C / Inert atmosphere |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
371 mg | With triethylamine In tetrahydrofuran at 20℃; for 1h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
93% | With boron trifluoride diethyl etherate; water at 80℃; for 2h; regioselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | With cerium(IV) oxide In 1,3,5-trimethyl-benzene at 165℃; for 22h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
86% | With montmorillonite KSF for 0.00555556h; Microwave irradiation; Green chemistry; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With ruthenium(bis[2‐(ethylsulfanyl)ethyl]amine)(dichloro)(triphenylphosphine); potassium <i>tert</i>-butylate In toluene at 80℃; for 16h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In dichloromethane at 20℃; for 12h; | General procedure: Owing to the excellent chloride to ester ratio 2:3 (97:3), atom economy (lowest molecular weightall aroyl chlorides) and cost efficiency inexpensive benzoyl chloride seems to be an optimal reagent.Interestingly, in the absence of DMF the yields of chloride 2 was found to be 5% for all carboxylic acid chlorides examined (Table 7), clearly demonstrating the catalytic role of DMF. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: triethylamine / dichloromethane / 2 h / 0 - 20 °C / Inert atmosphere 2: di-isopropyl azodicarboxylate / dichloromethane / 36 h / 40 °C / Inert atmosphere |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
93% | With di-isopropyl azodicarboxylate In dichloromethane at 40℃; for 36h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
89% | With 1-methyl-pyrrolidin-2-one; trifluorormethanesulfonic acid In chlorobenzene at 130℃; for 24h; Inert atmosphere; Schlenk technique; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
346 mg | With dmap; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 0.333333h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: dibromoisocyanuric acid / dichloromethane / 3 h / 20 °C 2: N-ethyl-N,N-diisopropylamine; dmap / dichloromethane / 0.33 h / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
77% | With C39H32OP2*C13H12N(1-)*Pd(2+)*CH3O3S(1-); N-ethyl-N,N-diisopropylamine In toluene at 110℃; for 12h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
74% | With palladium diacetate; 1,8-diazabicyclo[5.4.0]undec-7-ene; tri tert-butylphosphoniumtetrafluoroborate In o-xylene at 110℃; for 24h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80% | With potassium phosphate; palladium diacetate; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene for 1.5h; Milling; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
74% | With iodine; sodium carbonate In acetonitrile for 5h; Reflux; | General procedure for conversion of N-alkoxyamides (1) to carboxylic esters (2) General procedure: Sodium bicarbonate (56 mg, 0.66 mmol) and iodine (195 mg, 0.77 mmol) were added to N-(benzyloxy)benzamide (50 mg, 0.22 mmol) in anhydrous MeCN (3 mL). The mixture was heated to reflux for 5 h. It was then allowed to cool to rt, diluted with H2O (10 mL) and then extracted with EtOAc (210 mL). The combined organic extract was was hedwith saturated aqueous solution of Na2S2O3 (25 mL), H2O (10 mL), brine (10 mL), and then dried (MgSO4). It was then filtered and the filtrate was concentrated under reduced pressure to leave a residue which was purified by column chromatography on silica gel (petroleum ether:ethyl acetate 98:02) to provide the benzyl benzoate (2a) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.25 h / 0 °C 1.2: 16 h / 0 - 20 °C 2.1: sodium carbonate; iodine / acetonitrile / 5 h / Reflux |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1: 68% 2: 72% | With tert.-butylhydroperoxide; tetra-(n-butyl)ammonium iodide In water; acetonitrile at 80℃; for 24h; Sealed tube; | Esterification of Allyl Alcohols 1 with Toluene Derivatives 2; General Procedure General procedure: Under air atmosphere, a sealable reaction tube equipped with a magnetic stir bar and covered with a rubber septum was charged with alcohol compound 1 (1.0 mmol), toluene derivative 2 (4.0 mmol), and Bu4NI (36.9 mg, 10 mol%) in MeCN (2.0 mL). To this mixture was added TBHP (70% wt/v in H2O, 6.0 equiv) at r.t. The rubber septum was then replaced by a Teflon-coated screw cap, and the reaction vessel was placed in an oil bath at 80 °C for 24 h. After the completion of the reaction (monitored by TLC), the mixture was cooled to r.t. The resulting solution was poured into a mixture of sat. aq Na2S2O3 (5 mL) and sat. aq NaHCO3 (5 mL), and extracted with EtOAc (2 ×). The combined organic layers were dried (anhyd Na2SO4) and the solvents were removed in vacuo. The residue was purified by flash chromatography on silica gel (eluent: PE/EtOAc) to give the desired product. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99 %Spectr. | With tris(bis(trimethylsilyl)amido)lanthanum(III) In neat (no solvent) at 25℃; for 0.333333h; chemoselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1: 89% 2: 88% | In neat (no solvent) at 20℃; for 2h; | General procedure for aroylation of alcohols 2a-i bygrinding with N-aroylbenzotriazoles (1a-d): General procedure: A mixture of N-aroylbenzotriazole 1 (1.0 mmol) and the corresponding alcohol 2 (2.0 mmol) was ground together in a mortar using pestle for the time described in Tables 1 and 2. Completion of the reaction was monitored by TLC in hexane:dichloromethane(1:1) solvent systems. The resulting mixture was purified by preparative thin layer chromatography (silica gel, elution with 50% dichloromethane/hexane) to provide desired ester 3 and benzotriazole (4). |
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