438-20-0Relevant academic research and scientific papers
Preparation of 3,17- and 3,20-difluoro-derivatives of the androst-5-ene and pregn-5-ene series
Decreau, Richard A.,Marson, Charles M.
, p. 4369 - 4385 (2007/10/03)
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 5α-an
