Tf2O/DMSO-mediated dual activation of aryl phosphinate to access various aryl phosphonates

Chem Commun (Camb). 2023 Sep 7;59(72):10817-10820. doi: 10.1039/d3cc03250g.

Abstract

A metal-free method for the dual activation of aryl phosphinate has been developed; the P-H and P-O bonds are sequentially activated by the Tf2O/DMSO system. Without the requirement of metals and unstable P-reagents, this one-pot procedure provides a convenient and practical access to a variety of aryl phosphonates. A mechanism involving twice generation of electrophilic P-species and two SN-processes is proposed on the basis of the control experiments.