反应详情

To a solution of 1-benzyloxycarbonyl-5-chloro-3-formylindol (2.00 g) in methanol (13 ml) was added sodium borohydride (241 mg) at 0° C. After the mixture was stirred for 15 minutes at the same temperature, ice water was added to the mixture. Potassium carbonate was added to make the mixture saturate. The whole was extracted with ether and the extract was dried over magnesium sulfate. Concentration of the mixture gave a residue, to which hexane was added. 1-benzyloxycarbonyl-5-chloro-3-hydroxymethylindol (1.80 g) was obtained as a crystal.

1. additionwas added to the mixture
2. concentrationsaturate
3. extractionThe whole was extracted with ether
4. dry with materialthe extract was dried over magnesium sulfate
5. customConcentration of the mixture gave a residue