Dehydropolymerisation of Methylamine Borane and an N-Substituted Primary Amine Borane Using a PNP Fe Catalyst.

ABSTRACT: Dehydropolymerisation of methylamine borane (H₃ B⋅NMeH₂ ) using the well-known iron amido complex [(PNP)Fe(H)(CO)] (PNP=N(CH₂ CH₂ PiPr₂ )₂ ) (1) gives poly(aminoborane)s by a chain-growth mechanism. In toluene, rapid dehydrogenation of H₃ B⋅NMeH₂ following first-order behaviour as a limiting case of a more general underlying Michaelis-Menten kinetics is observed, forming aminoborane H₂ B=NMeH, which selectively couples to give high-molecular-weight poly(aminoborane)s (H₂ BNMeH)_n and only traces of borazine (HBNMe)₃ by depolymerisation after full conversion. Based on a series of comparative experiments using structurally related Fe catalysts and dimethylamine b

SUBMITTER: Anke F 

PROVIDER: S-EPMC7383739 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature