A convergent radical-based route to biaryls
Abstract
A route to blaryl-3-carboxylate esters Involving a radical 1,2-aryl migration has been developed. This strategy hinges on the radical addition of xanthate 2 to olefin 1 causing a 1,2-aryl shift leading to a,ß- unsaturated ester 5, which Is then converted Into blaryl 10 by treatment with DBU under microwave heating © 2009 American Chemical Society.