反应详情

温度

50 °C

A solution of 900 mg (3.49 mmol) 5-(4-Chloro-phenyl)-nicotinic acid methyl ester in 30.0 ml Ethanol was treated at room temperature (r. t.) with 264 mg (69.9 mmol) of sodium borohydride. The mixture was stirred for two days at 50° C. Then it was poured on ice and extracted tree times with ethyl acetate. The combined organic phases were washed with water, dried (sodium sulphate) and evaporated. Chromatography on silica (eluent: ethyl acetate/methanol 6:1) gave 522 mg (67%) of [5-(4-Chloro-phenyl)-pyridin-3-yl]-methanol.

1. additionThen it was poured on ice
2. extractionextracted tree times with ethyl acetate
3. washThe combined organic phases were washed with water
4. dry with materialdried (sodium sulphate)
5. customevaporated