Insertion d'une phosphine acétylénique dans un complexe μ-alkylidénique du tungstène suivie de la rupture d'une liaison CP |
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Authors: | J. Levisalles F. Rose-Munch H. Rudler J.C. Daran Y. Jeannin |
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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 |
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Abstract: | The diphosphinoalkyne Ph2PCCPPh2 (2) reacts with the μ-alkylidene complex (CO)9W2[CHCHC(CH3)2] (1) to give, upon insertion of the alkyne into one of the CW bonds of the bridging carbene followed by rupture of a CP bond, a phosphido complex (CO)8W2[C(PPh2)CCHCHC(CH3)2] PPh2 (3). An unexpected long-range 1H31P coupling, through five bonds, is observed in complex 3. |
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Keywords: | To whom correspondence should be addressed. |
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