The oxidation of 4,4-dimethyl-3-oxosteroids with sodium dichromate
Abstract
Oxidation of 4,4-dimethylcholest-5-ene-3-one and 4,4-dimethyl-5α-cholestan-3-one with sodium dichromate has been shown to give the γ-lactones 3,3-dimethyl-2-oxa-A-norcholest-5-ene-1,7-dione and 3,3-dimethyl-2-oxa-A-nor-5α-cholestan-1-one, respectively.