Remote Stereocontrol in the Ireland-Claisen Rearrangement by δ-Alkoxy Group

J Org Chem. 2023 Jun 2;88(11):7560-7563. doi: 10.1021/acs.joc.3c00535. Epub 2023 May 9.

Abstract

Remote stereocontrol in the Ireland-Claisen rearrangement using a chiral acetonide that serves as internal stereocontrol element is an effective and general method for chirality transfer from a δ-hydroxyl group in the allylic alcohol unit. This strategy circumvents the need for redundant chirality at the α-position allylic alcohol, while simultaneously producing a terminal alkene that can streamline synthetic applications and complex molecule synthesis planning.