A 13C NMR Method for Determining the Stereochemistry of the A/B Ring Junction in B-Norsteroids
Abstract
A correlation between the position of the 13C NMR signal for the C-10 methyl group (C-19) and the stereochemistry of the A/B ring junction has been established and applied to the determination of the stereochemistry of the products of the hydroboration of B-norandrosta-3,5-dien-17-one.