Iridium-Catalyzed 1,3-Rearrangement of Allylic Ethers

Org Lett. 2023 Dec 8;25(48):8727-8732. doi: 10.1021/acs.orglett.3c03661. Epub 2023 Nov 29.

Abstract

The 1,3-rearrangement of allylic derivatives has rarely been reported, except for allylic alcohols. Herein, we describe an iridium-catalyzed 1,3-rearrangement of readily available allylic ethers to access the difficultly prepared allylic ethers with a large steric hindrance. The developed method shows a broad substrate scope and could be used in the late-stage modification of several natural products. In addition, a possible reaction pathway is also provided on the basis of the control experiments.