Spontaneous trans ‐Selective Transfer Hydrogenation of Apolar Boron–Boron Double Bonds

Michael Dömling,Merle Arrowsmith,Uwe Schmidt,Luis Werner,Abril C. Castro,J. Oscar C. Jiménez‐Halla,Rüdiger Bertermann,Jonas Müssig,Dominic Prieschl,Holger Braunschweig

Angewandte Chemie International Edition（2019）

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摘要

The transfer hydrogenation of N‐heterocyclic carbene (NHC)‐supported diborenes with dimethylamine borane proceeds with high selectivity for the trans ‐1,2‐dihydrodiboranes. DFT calculations, supported by kinetic studies and deuteration experiments, suggest a stepwise proton‐first‐hydride‐second reaction mechanism via an intermediate μ‐hydrodiboronium dimethylaminoborate ion pair.

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boron–boron double bonds,apolar boron–boron,hydrogenation

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