Transformation of steroidal cyclohexadienyl anion without fragmentation: Unexpected synthesis of methylenesteroid
作者:L. L. Vasil'eva、M. A. Lapitskaya、K. K. Pivnitsky
DOI:10.1007/bf02495310
日期:1999.7
In contrast with androsta-1,4-diene-3α/β, 17β-diol, its 3-O-methylether is transformed upon C(3)-deprotonation into the corresponding 3-methylene steroid with migration of theO-methyl group on the steroid skeleton (by the scheme of Wittig rearrangement) rather than eliminating the 19-methyl group.