Cross‐Dehydrogenative Coupling Polymerization via C−H Activation for the Synthesis of Conjugated Polymers

Owing to their versatile (opto)electronic properties, conjugated polymers have found application in several organic electronic devices. Cross-coupling reactions such as Stille, Suzuki, Kumada couplings, and direct arylation proved be effective for synthesis. More atom-efficient oxidative polymerization has also been reported making homopolymers. However, growing interest toward donor-acceptor led the recent emergence of cross-dehydrogenative coupling (CDC) synthesize alternating copolymers without any prefunctionalization monomers. Metal-catalyzed cross-coupling two simple arenes via double C−H activation, or an arene with alkene Heck-type reaction used so far CDC polymerization. In this article, we discuss development protocols along relevant small molecule improved understanding these reactions.