Chlorination of 3β-hydroxyl-5-Δ steroids with anhydrous ferric chloride
作者:F LIU、H LIU、Y ZHANG、J ZHANG、L TIAN
DOI:10.1016/j.steroids.2005.04.008
日期:2005.11
Treatment of 3beta-hydroxyl-5-Delta steroids with anhydrous FeCl(3) in CH(2)Cl(2) afforded reasonable yields of the corresponding alkyl chlorides with a retention of configurations. The structures of the chlorine-exchanging products were determined by NMR and HRMS spectra. The absolute configurations were confirmed by X-ray crystal analysis of 3beta-chloro-androst-5-en-17-one. The generality and scope