Selective reduction of 3-keto group in steroidal ketoaldehydes
作者:M.Paglialunga Paradisi、G.Pagani Zecchini
DOI:10.1016/0040-4020(82)80258-5
日期:1982.1
Convenient preparation of some steroidal 3-hydroxyaldehydes from corresponding 3-ketoaldehydes was achieved by protection of the aldehyde group with t-butylamine followed by in situ reduction of the keto group with Li (t-BuO)3AlH. Final cleavage of hydroxyaldimine was accomplished by eluting the reduction mixture on basic alumina.