反应详情

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0 °C

A solution of 1-(benzyloxyimino-methyl)-cycloheptanecarboxylic acid (4.44 g, 16.1 mmol) in methanol (200 mL) at 0° C. under an argon atmosphere was added a trace amount of methyl orange. A solution of saturated methanolic HCl was added until a persistent red color was observed. Sodium cyanoborohydride (1.3 g, 20.9 mmol) was added portionwise alternately with methanolic HCl to maintain the red color. The reaction mixture was maintained at 0° C. for an additional 2 h and the volatiles were removed in vacuo to yield the title compound that was used without further purification. MH+278.

1. temperatureto maintain the red color
2. customthe volatiles were removed in vacuo