Photoinduced Nonstabilized Azomethine Ylide Formation for the Preparation of Fluorine Containing Pyrrolidines

J Org Chem. 2019 May 3;84(9):5877-5885. doi: 10.1021/acs.joc.9b00244. Epub 2019 Apr 19.

Abstract

A mild and reproducible method for the formation of a nonstabilized azomethine ylide was developed by photoinduced reaction catalyzed with eosin Y under green light irradiation. Resulting 1,3-dipole was trapped with fluoroalkenes, fluoroalkylated alkenes, and representative dipolarophiles to access pyrrolidine scaffolds, including spirocyclic compounds. The mechanism involved in this transformation was investigated, showing clearly a catalytic redox cycle with eosin Y.

Publication types

  • Research Support, Non-U.S. Gov't