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Insertion d'une phosphine acétylénique dans un complexe μ-alkylidénique du tungstène suivie de la rupture d'une liaison CP
Authors:J. Levisalles  F. Rose-Munch  H. Rudler  J.C. Daran  Y. Jeannin
Affiliation:Laboratoire de Chimie Organique UA 408, T 45, 4 Place Jussieu 75230 Paris Cedex 05 France;Laboratoire de Chimie des Métaux de Transition, ERA 608, 4 Place Jussieu 75230 Paris Cedex 05 France
Abstract:The diphosphinoalkyne Ph2PCCPPh2 (2) reacts with the μ-alkylidene complex (CO)9W2[CHCHC(CH3)2] (1) to give, upon insertion of the alkyne into one of the CW bonds of the bridging carbene followed by rupture of a CP bond, a phosphido complex (CO)8W2[C(PPh2)CCHCHC(CH3)2] PPh2 (3). An unexpected long-range 1H31P coupling, through five bonds, is observed in complex 3.
Keywords:To whom correspondence should be addressed.
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