3-三氟甲基苄硫醇

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To the stirred suspension of 1.08 g of sodium hydride in 25 ml of dimethylformamide the solution of 9.0 g of m-trifluoromethylbenzylmercaptan in 50 ml of dimethylformamide is added during 3 minutes and the mixture stirred for 10 minutes. It is combined with 7.75 g of 6-methyl-5-nitropyridine-2-carboxylic acid methyl ester and the whole stirred on the steam bath for 30 minutes and allowed to stand overnight at room temperature. 2 ml of acetic acid are added and the solution is mixed with ice water to produce a dense, grainy precipitate. It is filtered off and recrystallized from isopropanol-diethyl ether, to yield the 6-methyl-5-(m-trifluoromethylbenzylmercapto)-pyridine-2-carboxylic acid methyl ester melting at 91°-93°. is added during 3 minutes the whole stirred on the steam bath for 30 minutes to stand overnight at room temperature to produce a dense, grainy precipitate It is filtered off recrystallized from isopropanol-diethyl ether

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To the stirred suspension of 1.08 g of sodium hydride in 25 ml of dimethylformamide the solution of 9.0 g of m-trifluoromethylbenzylmercaptan in 50 ml of dimethylformamide is added during 3 minutes and the mixture stirred for 10 minutes. It is combined with 7.75 g of 6-methyl-5-nitropyridine-2-carboxylic acid methyl ester and the whole stirred on the steam bath for 30 minutes and allowed to stand overnight at room temperature. 2 ml of acetic acid are added and the solution is mixed with ice water to produce a dense, grainy precipitate. It is filtered off and recrystallized from isopropanol-diethyl ether, to yield the 6-methyl-5-(m-trifluoromethylbenzylmercapto)-pyridine-2-carboxylic acid methyl ester melting at 91°-93°. is added during 3 minutes the whole stirred on the steam bath for 30 minutes to stand overnight at room temperature to produce a dense, grainy precipitate It is filtered off recrystallized from isopropanol-diethyl ether

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The solution of 4.6 g of m-trifluoromethylbenzylmercaptan in 30 ml of dimethylformamide is added to the slurry of 1.08 g of 50% sodium hydride in mineral oil (washed 2 times with hexane), under nitrogen while stirring at room temperature. After several minutes, a clear yellow solution is obtained, which is combined with that of 5.0 g of 3-nitro-2,5-pyridinedicarboxylic acid dimethyl ester in 50 ml of dimethylformamide. The mixture is warmed on the steam bath for 30 minutes at 90° and stirred at room temperature overnight. It is acidified with 2 ml of acetic acid and diluted to 400 ml with a mixture of ice and water. The precipitate formed is collected and recrystallized from methanol-diethyl ether (1:1), to yield the 3-(m-trifluoromethylbenzylmercapto)-2,5-pyridine-dicarboxylic acid dimethyl ester melting at 102°-106°. After several minutes a clear yellow solution is obtained The mixture is warmed on the steam bath for 30 minutes at 90° stirred at room temperature overnight The precipitate formed is collected recrystallized from methanol-diethyl ether (1:1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The solution of 4.6 g of m-trifluoromethylbenzylmercaptan in 30 ml of dimethylformamide is added to the slurry of 1.08 g of 50% sodium hydride in mineral oil (washed 2 times with hexane), under nitrogen while stirring at room temperature. After several minutes, a clear yellow solution is obtained, which is combined with that of 5.0 g of 3-nitro-2,5-pyridinedicarboxylic acid dimethyl ester in 50 ml of dimethylformamide. The mixture is warmed on the steam bath for 30 minutes at 90° and stirred at room temperature overnight. It is acidified with 2 ml of acetic acid and diluted to 400 ml with a mixture of ice and water. The precipitate formed is collected and recrystallized from methanol-diethyl ether (1:1), to yield the 3-(m-trifluoromethylbenzylmercapto)-2,5-pyridine-dicarboxylic acid dimethyl ester melting at 102°-106°. After several minutes a clear yellow solution is obtained The mixture is warmed on the steam bath for 30 minutes at 90° stirred at room temperature overnight The precipitate formed is collected recrystallized from methanol-diethyl ether (1:1)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To the stirred suspension of 1.08 g of sodium hydride in 25 ml of dimethylformamide the solution of 9.0 g of m-trifluoromethylbenzylmercaptan in 50 ml of dimethylformamide is added during 3 minutes and the mixture stirred for 10 minutes. It is combined with 7.75 g of 6-methyl-5-nitropyridine-2-carboxylic acid methyl ester and the whole stirred on the steam bath for 30 minutes and allowed to stand overnight at room temperature. 2 ml of acetic acid are added and the solution is mixed with ice water to produce a dense, grainy precipitate. It is filtered off and recrystallized from isopropanol-diethyl ether, to yield the 6-methyl-5-(m-trifluoromethylbenzylmercapto)-pyridine-2-carboxylic acid methyl ester melting at 91°-93°. is added during 3 minutes the whole stirred on the steam bath for 30 minutes to stand overnight at room temperature to produce a dense, grainy precipitate It is filtered off recrystallized from isopropanol-diethyl ether

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To the stirred suspension of 1.08 g of sodium hydride in 25 ml of dimethylformamide the solution of 9.0 g of m-trifluoromethylbenzylmercaptan in 50 ml of dimethylformamide is added during 3 minutes and the mixture stirred for 10 minutes. It is combined with 7.75 g of 6-methyl-5-nitropyridine-2-carboxylic acid methyl ester and the whole stirred on the steam bath for 30 minutes and allowed to stand overnight at room temperature. 2 ml of acetic acid are added and the solution is mixed with ice water to produce a dense, grainy precipitate. It is filtered off and recrystallized from isopropanol-diethyl ether, to yield the 6-methyl-5-(m-trifluoromethylbenzylmercapto)-pyridine-2-carboxylic acid methyl ester melting at 91°-93°. is added during 3 minutes the whole stirred on the steam bath for 30 minutes to stand overnight at room temperature to produce a dense, grainy precipitate It is filtered off recrystallized from isopropanol-diethyl ether

反应条件: temp:0.00; pressure:0.00; stir: