Alumina-promoted fast solid-phase Michael addition of enamines with conjugated enones under microwave irradiation
摘要:
A fast alumina-promoted solid-phase Michael addition of enamines to conjugated enones is described under microwave irradiation in high yields. The 1,5-diketo Michael adducts have been converted into a novel class of 1',2'-diazepino(17,16-d') steroids. (C) 2001 Elsevier Science Ltd. All rights reserved.