A General, Rhodium-Catalyzed, Synthesis of Deuterated Boranes and N-Methyl Polyaminoboranes

Annie L Colebatch, Benjamin W Hawkey Gilder, George R Whittell, Nicola L Oldroyd, Ian Manners, Andrew S Weller

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The rhodium complex [Rh(Ph2 PCH2 CH2 CH2 PPh2 )(η6 -FC6 H5 )][BArF4 ], 2, catalyzes BH/BD exchange between D2 and the boranes H3 B⋅NMe3 , H3 B⋅SMe2 and HBpin, facilitating the expedient isolation of a variety of deuterated analogues in high isotopic purities, and in particular the isotopologues of N-methylamine-borane: R3 B⋅NMeR2 1-dx (R=H, D; x=0, 2, 3 or 5). It also acts to catalyze the dehydropolymerization of 1-dx to give deuterated polyaminoboranes. Mechanistic studies suggest a metal-based polymerization involving an unusual hybrid coordination insertion chain-growth/step-growth mechanism.

Original languageEnglish
Pages (from-to)5450-5455
Number of pages6
JournalChemistry - A European Journal
Issue number21
Early online date23 Mar 2018
Publication statusPublished - 11 Apr 2018

Bibliographical note

© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.


  • borane
  • dehydropolymerization
  • deuterium
  • H/D exchange
  • rhodium

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