<i>Meta</i>‐Selective Transition‐Metal Catalyzed Arene CH Bond Functionalization

Abstract

The selectivity is meta! Recent developments on transition-metal catalyzed meta-selective CH functionalization are highlighted (see scheme; EDG=electron-donating group, EWG=electron-withdrawing group). The method is complementary to traditional methodologies and might provide numerous opportunities to access previously difficult organic products. Possible mechanisms are discussed.