Reduction of aldehydes and oximes to their corresponding alcohols and amines by catalytic hydrogenation method

摘要

The reduction of aldehydes such as 2-butyl-5-chloro-3H-imidazole-5-carbaldehyde and veratraldehyde,which are pharmaceutical key intermediates,have been reduced to alcohols by catalytic hydrogenation method in the presence of magnesium and also oximes are reduced to primary amines successively by magnesium/ammonium formate system,is a large scale feasible and cheaper method.The crystal structure of the product,(2-butyl-5-chloro-3H-imidazole-4-yl)-methanol 1 is reported.