Rhodium-Catalyzed Formation of Phosphorus-Boron Bonds: Synthesis of the First High Molecular Weight Poly(phosphinoborane)

Abstract
An inorganic analogue of polystyrene, poly(phenylphosphinoborane) represents the first high molecular weight, well‐characterized polymer with a backbone of alternating phosphorus and boron atoms. It is accessible by metal‐catalyzed “dehydrocoupling” of a primary phosphane–borane adduct (see scheme).

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