The reformatsky reaction of 17-keto-steroids with ethyl α-bromopropionate
作者:Iwasaki Mitsutaka
DOI:10.1016/0039-128x(67)90025-6
日期:1967.4
Abstract The Reformatskyreaction of 17-keto-steroids with ethyl α-bromopropionate was investigated, and a new decarboxylation reaction of 23-nor-cholan-22-oic acids has been discovered, leading to pregn-17(20)-enes. Such a decarboxylation, however, could not be achieved with those acids prepared by the Reformatskyreactions of 3- and 16-keto-steroids and also of 17-keto-steroids and ethyl monobromoacetate