Preparation of 3,17‐ and 3,20‐Difluoro‐Derivatives of the Androst‐5‐ene and Pregn‐5‐ene Series
作者:Richard A. Decréau、Charles M. Marson
DOI:10.1081/scc-200039449
日期:2004.12.31
Unsaturated mono- and difluorosteroids have been prepared in high yield using n-perfluorobutanesulfonyl fluoride 1. The 3,17- and 3,20-difluoro-5,6-dehydrosteroids are reported for the first time. 3-Fluoroderivatives of the androst-5-ene-17-one and 5alpha-androst-17-one series have been prepared, and yields obtained with 1 have been compared with those reported with other fluorinating agents.
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