A selective Cu(II)/Fe(III)-mediated hydrogenation of steroidal haloalkenes in the presence of hydrazine
作者:Kai-Hsuan Chang、Malikah N. Jenkins、Hsin-Ru Wu、Wen-Shan Li
DOI:10.1016/s0040-4039(02)02875-7
日期:2003.2
A new system for hydrogenation of haloalkenes is reported. Cu(II)/Fe(III)-mediated selective hydrogenation of steroidal haloalkenes in the presence of hydrazine proves to be a very efficient method for the synthesis of 17β-halosteroids, potential candidates as antiestrogens or androgen receptor-mediated imaging agents. The reaction stereospecifically affords β-haloalkanes without any concomitant formation