ZnII-promoted D-homorearrangement of 17α-hydroxy-3β-methoxyandrost-5-ene-17β-carbaldehyde
摘要:
The synthesis of 17-alpha-hydroxy-3-beta-methoxyandrost-5-ene-17-beta-carbaldehyde and a highly efficient method for its D-homorearrangement is described. The transformation produced by the action of Zn(II) afforded 17-alpha-hydroxy-3-beta-methoxy-D-homoandrost-5-en-17a-one in a fast, stereospecific, and high-yield reaction.