Reduction of 5-hydroxy-5α-cholestan-4-one oxime and 5-hydroxy-5α-cholestan-6-one oxime with sodium–ethanol and lithium aluminium hydride gives, inter alia, the 4β-, 6α-, and 6β-amino-5-hydroxy-5α-cholestanes, whose deamination is described and briefly discussed. Attempts to dehydrate these α-hydroxy-amines to the related allylic amines were unsuccessful, as also were attempted ammonolyses of 4β-chlorocholest-5-ene
用
钠-
乙醇和
氢化铝锂还原5-羟基-
5α-胆甾烷-4-一
肟和5-羟基-
5α-胆甾烷-6-一
肟,除其他外,得到4β-,6α-和6β-
氨基-5-羟基-
5α-胆甾烷,其脱
氨基作用已描述并作了简要讨论。将这些α-羟基胺脱
水为相关的
烯丙基胺的尝试均未成功,也尝试了4β-chlorocholest-5-ene和6β-chlorocholest-4-ene的
氨解反应。