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