Investigations on sterols XXIX: Synthesis and properties of some 6,7‐dehydro‐9β,10α‐steroids

Abstract

Abstract Alternative methods are described for the synthesis of a number of 6‐halo‐9β,10α‐pregnane and 6‐halo‐9β,10α‐androstane derivatives having a 4,6‐dien‐3‐one or a 1,4,6‐trien‐3‐one system. 4‐Halo and 6‐methoxy‐4,6‐dien‐3‐ones have been prepared, too. The endocrinological results are summarized.