Stereoselective Synthesis of Androstane‐Based Steroidal Phosphine Oxides Possessing the 16α‐Diphenylphosphinyl Moiety
作者:Rita Skoda‐Földes、László Kollár
DOI:10.1080/00397910600770649
日期:2006.9.1
Abstract New steroidal phosphine oxides were obtained by base‐catalysed addition of HPPh2 to the C˭C double bond of α,β‐unsaturated steroidal esters. The presence of Pd(OAc)2 has been shown to accelerate the reaction rate. 16α‐Phosphinyl‐17β‐metoxycarbonyl‐androstane derivatives were formed stereoselectively and isolated in moderate to high yields. The exact structure of the products were determined