4-methoxy-3-(trifluoromethyl)benzaldehyde

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

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

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

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5.8 g 3-trifluoromethyl-p-anisaldehyde, 8.6 ml formamide, and 13.6 ml formic acid was stirred at 130° C. for 9 hr. After cooling, water and ethyl acetate were added thereto. The ethyl acetate layer was recovered and washed with brine. It was dried over anhydrous magnesium sulfate, filtered, and evaporated. The resulting residue was purified by silica gel column chromatography to give 3.8 g of N-[4-methoxy-3-(trifluoromethyl)benzyl]formamide. After cooling The ethyl acetate layer was recovered washed with brine It was dried over anhydrous magnesium sulfate filtered evaporated The resulting residue was purified by silica gel column chromatography

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

Procedure: A mixture of 8.5 g 2-trifluoromethyl anisole and 7.0 g hexamethylene tetramine was stirred at 90° C. for 1.5 hr in 80 ml trifluoroacetic acid. The reaction solution was evaporated. The resulting residue was dissolved in ethyl acetate, and it was added dropwise into ice-cooled saturated aqueous sodium bicarbonate. The ethyl acetate layer was recovered and washed with brine. It was dried over anhydrous magnesium sulfate, filtered, and evaporated. The resulting residue was purified by silica gel column chromatography to give 5.8 g of 3-trifluoromethyl-p-anisaldehyde. The reaction solution was evaporated The resulting residue was dissolved in ethyl acetate it was added dropwise into ice- cooled saturated aqueous sodium bicarbonate The ethyl acetate layer was recovered washed with brine It was dried over anhydrous magnesium sulfate filtered evaporated The resulting residue was purified by silica gel column chromatography

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5.8 g 3-trifluoromethyl-p-anisaldehyde, 8.6 ml formamide, and 13.6 ml formic acid was stirred at 130° C. for 9 hr. After cooling, water and ethyl acetate were added thereto. The ethyl acetate layer was recovered and washed with brine. It was dried over anhydrous magnesium sulfate, filtered, and evaporated. The resulting residue was purified by silica gel column chromatography to give 3.8 g of N-[4-methoxy-3-(trifluoromethyl)benzyl]formamide. After cooling The ethyl acetate layer was recovered washed with brine It was dried over anhydrous magnesium sulfate filtered evaporated The resulting residue was purified by silica gel column chromatography

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

Procedure: A mixture of 8.5 g 2-trifluoromethyl anisole and 7.0 g hexamethylene tetramine was stirred at 90° C. for 1.5 hr in 80 ml trifluoroacetic acid. The reaction solution was evaporated. The resulting residue was dissolved in ethyl acetate, and it was added dropwise into ice-cooled saturated aqueous sodium bicarbonate. The ethyl acetate layer was recovered and washed with brine. It was dried over anhydrous magnesium sulfate, filtered, and evaporated. The resulting residue was purified by silica gel column chromatography to give 5.8 g of 3-trifluoromethyl-p-anisaldehyde. The reaction solution was evaporated The resulting residue was dissolved in ethyl acetate it was added dropwise into ice- cooled saturated aqueous sodium bicarbonate The ethyl acetate layer was recovered washed with brine It was dried over anhydrous magnesium sulfate filtered evaporated The resulting residue was purified by silica gel column chromatography

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5.8 g 3-trifluoromethyl-p-anisaldehyde, 8.6 ml formamide, and 13.6 ml formic acid was stirred at 130° C. for 9 hr. After cooling, water and ethyl acetate were added thereto. The ethyl acetate layer was recovered and washed with brine. It was dried over anhydrous magnesium sulfate, filtered, and evaporated. The resulting residue was purified by silica gel column chromatography to give 3.8 g of N-[4-methoxy-3-(trifluoromethyl)benzyl]formamide. After cooling The ethyl acetate layer was recovered washed with brine It was dried over anhydrous magnesium sulfate filtered evaporated The resulting residue was purified by silica gel column chromatography

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5.8 g 3-trifluoromethyl-p-anisaldehyde, 8.6 ml formamide, and 13.6 ml formic acid was stirred at 130° C. for 9 hr. After cooling, water and ethyl acetate were added thereto. The ethyl acetate layer was recovered and washed with brine. It was dried over anhydrous magnesium sulfate, filtered, and evaporated. The resulting residue was purified by silica gel column chromatography to give 3.8 g of N-[4-methoxy-3-(trifluoromethyl)benzyl]formamide. After cooling The ethyl acetate layer was recovered washed with brine It was dried over anhydrous magnesium sulfate filtered evaporated The resulting residue was purified by silica gel column chromatography

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

Procedure: A mixture of 8.5 g 2-trifluoromethyl anisole and 7.0 g hexamethylene tetramine was stirred at 90° C. for 1.5 hr in 80 ml trifluoroacetic acid. The reaction solution was evaporated. The resulting residue was dissolved in ethyl acetate, and it was added dropwise into ice-cooled saturated aqueous sodium bicarbonate. The ethyl acetate layer was recovered and washed with brine. It was dried over anhydrous magnesium sulfate, filtered, and evaporated. The resulting residue was purified by silica gel column chromatography to give 5.8 g of 3-trifluoromethyl-p-anisaldehyde. The reaction solution was evaporated The resulting residue was dissolved in ethyl acetate it was added dropwise into ice- cooled saturated aqueous sodium bicarbonate The ethyl acetate layer was recovered washed with brine It was dried over anhydrous magnesium sulfate filtered evaporated The resulting residue was purified by silica gel column chromatography

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

Procedure: A mixture of 8.5 g 2-trifluoromethyl anisole and 7.0 g hexamethylene tetramine was stirred at 90° C. for 1.5 hr in 80 ml trifluoroacetic acid. The reaction solution was evaporated. The resulting residue was dissolved in ethyl acetate, and it was added dropwise into ice-cooled saturated aqueous sodium bicarbonate. The ethyl acetate layer was recovered and washed with brine. It was dried over anhydrous magnesium sulfate, filtered, and evaporated. The resulting residue was purified by silica gel column chromatography to give 5.8 g of 3-trifluoromethyl-p-anisaldehyde. The reaction solution was evaporated The resulting residue was dissolved in ethyl acetate it was added dropwise into ice- cooled saturated aqueous sodium bicarbonate The ethyl acetate layer was recovered washed with brine It was dried over anhydrous magnesium sulfate filtered evaporated The resulting residue was purified by silica gel column chromatography

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5.8 g 3-trifluoromethyl-p-anisaldehyde, 8.6 ml formamide, and 13.6 ml formic acid was stirred at 130° C. for 9 hr. After cooling, water and ethyl acetate were added thereto. The ethyl acetate layer was recovered and washed with brine. It was dried over anhydrous magnesium sulfate, filtered, and evaporated. The resulting residue was purified by silica gel column chromatography to give 3.8 g of N-[4-methoxy-3-(trifluoromethyl)benzyl]formamide. After cooling The ethyl acetate layer was recovered washed with brine It was dried over anhydrous magnesium sulfate filtered evaporated The resulting residue was purified by silica gel column chromatography