Journal
CHEMICAL COMMUNICATIONS
Volume 51, Issue 50, Pages 10138-10141Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc02517f
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- Julius-Maximilians-University Wurzburg
- Deutsche Forschungsgemeinschaft (DFG)
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The dehydrogenative coupling of primary and secondary phosphines with the N-heterocyclic carbene iPr(2)Im (1,3-di-isopropyl-imidazolin-2-ylidene) has been reported. The dehydrogenation of R2PH affords diphosphines R2P-PR2. The reaction of iPr(2)Im with ArPH2 leads to the formation of NHC phosphinidene adducts iPr(2)Im = 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.
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