反应详情

To a solution of 4-ethyl-2-hydroxyimino-5-nitro-3-hexenal (100 mg) in dry ethanol (10 ml) was added sodium borohydride (15 mg) at 0° C. with stirring. The resulting mixture was stirred at the same temperature for 10 minutes and 1N hydrochloric acid was added thereto. The reaction mixture was extracted with ethyl acetate and the extract was washed with successively with water, an aqueous sodium bicarbonate solution and brine, dried over magnesium sulfate, and then evaporated to dryness in vacuo to give an oil. The oil was purified by a preparative thin layer chromatography [solvent: methanol-chloroform (10:90) to give 4-ethyl-2-hydroxyimino-5-nitro-3-hexen-1-ol (80 mg).

1. stirringThe resulting mixture was stirred at the same temperature for 10 minutes
2. extractionThe reaction mixture was extracted with ethyl acetate
3. washthe extract was washed with successively with water
4. dry with materialan aqueous sodium bicarbonate solution and brine, dried over magnesium sulfate
5. customevaporated to dryness in vacuo
6. customto give an oil
7. customThe oil was purified by a preparative thin layer chromatography [solvent