Ti-Catalyzed Dehydroxylation of Tertiary Alcohols

Org Lett. 2022 Nov 25;24(46):8459-8464. doi: 10.1021/acs.orglett.2c03119. Epub 2022 Nov 10.

Abstract

Herein we report a Ti-catalyzed direct dehydroxylation of tertiary aliphatic alcohols under mild reaction conditions, forging Barton-type deoxygenation products. This protocol tolerates a wide range of functional groups, including primary alkyl chloride and carbonyl groups. It allows for selective dehydroxylation of tertiary alcohols in diols and the formation of deuterated products with moderate deuterium incorporation. The efficient modification of several drugs and natural products (or their derivatives) highlights the synthetic utility of this method.