Indium-Catalyzed Dehydrocoupling of Primary Amine-Borane Adducts: A Route to High Molecular Weight Polyaminoboranes, Boron-Nitrogen Analogues of Polyolefins

摘要

Despite the historic analogy between boron-nitrogen compounds and those of carbon and the expanding interest in polymeric materials based on main-group elements, macro-molecular chemistry based on boron-nitrogen linkages is extremely limited. In particular, high molecular weight boron-nitrogen analogues of polyolefins ([R2N-BR'2]_n) have never been convincingly characterized, although such structures have attracted attention with respect to computational studies. Herein we report a catalytic route to the first, soluble macromolecular examples of these materials.