STEREOCHEMICAL STUDIES: II. CONFIGURATIONS OF SOME 4-OXACHOLESTANES

Abstract
The oxidation of A-nor-5β-cholestan-3-one with peracids gave 4-oxa-5β-cholestan-3-one. This was identical with one of the two lactones produced by the reduction of Windaus' keto acid; the other lactone must be 4-oxa-5α-cholestan-3-one. The two lactones were reduced by lithium aluminum hydride to diols, which were cyclized to 4-oxa-5α- and -5β-cholestane.

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