3-trifluoromethyl-4-chlorobenzyl chloride

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 1-(3-piperazinylpropyl)-3-n-hexylurea (2.7 g; 10 mmole), 3-trifluoromethyl-4-chloro-benzyl chloride (2.29 g; 10 mmole), triethylamine (1.01 g; 10 mmole) and ethanol (30 ml) was refluxed for 3 hours. The solvent was evaporated in vacuo, and water was added to the residue. The product was extracted with ether, and the extract was dried (sodium sulfate) and concentrated. Precipitation of the oily residue with ethereal hydrochloric acid, followed by recrystallization from alcohol, provided the title compound (3.1 g; 58% yield) as colorless crystals, m.p. 216°-219° C. was refluxed for 3 hours The solvent was evaporated in vacuo, and water was added to the residue The product was extracted with ether the extract was dried (sodium sulfate) concentrated Precipitation of the oily residue with ethereal hydrochloric acid followed by recrystallization from alcohol

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of ethyl 2-(7-hydroxy-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetate (222 mg, 0.856 mmol), 1-chloro-4-(chloromethyl)-2-(trifluoromethyl)benzene (240 mg, 1.048 mmol), and cesium carbonate (165 mg, 0.856 mmol) in DMF (5 mL) was stirred at room temperature. After 3 days, more cesium carbonate (165 mg, 0.856 mmol) was added. After stirring for an additional 2 d, the mixture was extracted with water and CH2Cl2. The organics were dried over MgSO4, filtered and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a white solid (258 mg). LCMS m/z=452.1 [M+H]+; NMR (400 MHz, CDCl3) δ ppm 1.29 (t, J=7.2 Hz, 3H), 2.06-2.14 (m, 1H), 2.47-2.54 (m, 1H), 2.71-2.86 (m, 4H), 3.51-3.57 (m, 1H), 4.17-4.25 (m, 2H), 5.10 (s, 2H), 6.82 (dd, J=8.8, 2.5, 1H), 6.96 (d, J=2.5 Hz, 1H), 7.21 (dd, J=8.8, 0.32 Hz, 1H), 7.49-7.52 (m, 1H), 7.58 (dd, J=8.2, 2.6 Hz, 1H), 7.80 (d, J=1.92 Hz, 1H), 8.48 (s, 1H). After stirring for an additional 2 d the mixture was extracted with water and CH2Cl2 The organics were dried over MgSO4 filtered concentrated The residue was purified by silica gel column chromatography

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: (4-Chloro-3-(trifluoromethyl)phenyl)methanol (5.1 g, 24.22 mmol) was added in small portions to thionyl chloride (20 mL, 275 mmol). The reaction mixture was stirred at 50° C. for 18 h and heated under reflux for 23 h. The mixture was concentrated and dried under high vacuum to give the title compound as a colorless liquid (5.41 g). 1H NMR (400 MHz, CDCl3) δ ppm 4.58 (s, 2H), 7.50-7.51 (m, 2H), 7.71 (s, 1H). heated under reflux for 23 h The mixture was concentrated dried under high vacuum

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: (4-Chloro-3-(trifluoromethyl)phenyl)methanol (5.1 g, 24.22 mmol) was added in small portions to thionyl chloride (20 mL, 275 mmol). The reaction mixture was stirred at 50° C. for 18 h and heated under reflux for 23 h. The mixture was concentrated and dried under high vacuum to give the title compound as a colorless liquid (5.41 g). 1H NMR (400 MHz, CDCl3) δ ppm 4.58 (s, 2H), 7.50-7.51 (m, 2H), 7.71 (s, 1H). heated under reflux for 23 h The mixture was concentrated dried under high vacuum

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 4-(4-hydroxy-phenyl)-piperidine-1-carboxylic acid tert-butyl ester (1 eq) in anhydrous DMF is added NaH (1.1 eq) at room temperature. After 5 minutes, 1-chloro-4-chloromethyl-2-trifluoromethyl-benzene (1.1 eq) in DMF is added. The resulting mixture is stirred for 30 minutes. After aqueous work up, flash column chromatography (10% EtOAc/hexane) gave 4-[4-(4-Chloro-3-trifluoromethyl-benzyloxy)-phenyl]-piperidine-1-carboxylic acid tert-butyl ester. [MS: (ES+) 490.3 (M+1)+].

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of ethyl 2-(7-hydroxy-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetate (222 mg, 0.856 mmol), 1-chloro-4-(chloromethyl)-2-(trifluoromethyl)benzene (240 mg, 1.048 mmol), and cesium carbonate (165 mg, 0.856 mmol) in DMF (5 mL) was stirred at room temperature. After 3 days, more cesium carbonate (165 mg, 0.856 mmol) was added. After stirring for an additional 2 d, the mixture was extracted with water and CH2Cl2. The organics were dried over MgSO4, filtered and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a white solid (258 mg). LCMS m/z=452.1 [M+H]+; 1H NMR (400 MHz, CDCl3) δ ppm 1.29 (t, J=7.2 Hz, 3H), 2.06-2.14 (m, 1H), 2.47-2.54 (m, 1H), 2.71-2.86 (m, 4H), 3.51-3.57 (m, 1H), 4.17-4.25 (m, 2H), 5.10 (s, 2H), 6.82 (dd, J=8.8, 2.5, 1H), 6.96 (d, J=2.5 Hz, 1H), 7.21 (dd, J=8.8, 0.32 Hz, 1H), 7.49-7.52 (m, 1H), 7.58 (dd, J=8.2, 2.6 Hz, 1H), 7.80 (d, J=1.92 Hz, 1H), 8.48 (s, 1H). After stirring for an additional 2 d the mixture was extracted with water and CH2Cl2 The organics were dried over MgSO4 filtered concentrated The residue was purified by silica gel column chromatography

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: (4-Chloro-3-(trifluoromethyl)phenyl)methanol (5.1 g, 24.22 mmol) was added in small portions to thionyl chloride (20 mL, 275 mmol). The reaction mixture was stirred at 50° C. for 18 h and heated under reflux for 23 h. The mixture was concentrated and dried under high vacuum to give the title compound as a colorless liquid (5.41 g). 1H NMR (400 MHz, CDCl3) δ ppm 4.58 (s, 2H), 7.50-7.51 (m, 2H), 7.71 (s, 1H). heated under reflux for 23 h The mixture was concentrated dried under high vacuum

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 8.64 g. of 4,9-dihydro-10H-thieno[3,4-b][1,5]benzodiazepin-10-one in 100 ml. of dimethylformamide is added 2.1 g. of 50% sodium hydride in mineral oil. The mixture is stirred for one hour and 10.0 g. of 4-chloro-3-trifluoromethyl benzyl chloride and 10 mg of potassium iodide are added. The mixture is stirred for a prolonged period and the solvent is removed in vacuo. The residual gum is dissolved in methylene chloride, dried over magnesium sulfate and filtered through magnesol. The filtrate is evaporated to give tan crystals which are recrystallized from ethanol giving the desired product as off-white crystals, mp. 181°-183° C. The mixture is stirred for a prolonged period the solvent is removed in vacuo The residual gum is dissolved in methylene chloride dried over magnesium sulfate filtered through magnesol The filtrate is evaporated to give tan crystals which are recrystallized from ethanol giving the desired product as off-white crystals, mp. 181°-183° C.