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Issue 50, 2015
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The reductive P–P coupling of primary and secondary phosphines mediated by N-heterocyclic carbenes

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Abstract

The dehydrogenative coupling of primary and secondary phosphines with the N-heterocyclic carbene iPr2Im (1,3-di-isopropyl-imidazolin-2-ylidene) has been reported. The dehydrogenation of R2PH affords diphosphines R2P–PR2. The reaction of iPr2Im with ArPH2 leads to the formation of NHC phosphinidene adducts iPr2Im[double bond, length as m-dash]PAr and cyclic oligophosphines P4Ar4, P5Ar5 and P6Ar6, depending on the stoichiometry used. The NHC acts in these reactions as a phosphine activator and hydrogen acceptor.

Graphical abstract: The reductive P–P coupling of primary and secondary phosphines mediated by N-heterocyclic carbenes

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Article information


Submitted
26 Mar 2015
Accepted
13 May 2015
First published
13 May 2015

Chem. Commun., 2015,51, 10138-10141
Article type
Communication

The reductive P–P coupling of primary and secondary phosphines mediated by N-heterocyclic carbenes

H. Schneider, D. Schmidt and U. Radius, Chem. Commun., 2015, 51, 10138
DOI: 10.1039/C5CC02517F

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