R. Bertani, L. Pandolfo, L. Zanotto
Mar 13, 2002
Citations
0
Influential Citations
6
Citations
Journal
Inorganica Chimica Acta
Abstract
Ketenylidenetriphenylphosphorane, Ph3PCCO, 1, has been used to synthesize platinum-substituted ketenes [PtMe{η1-C(PPh3)CO}L2]BF4, 2a, b (L2=1,5-cyclooctadiene, cod (a), 1,2-bis(diphenylphosphino)ethane, diphos (b)). Parent compound [PtCl{η1-C(PPh3)CO}L2]BF4, 3, with L2=cis-1,2-bis(diphenylphosphino)ethene, diphoe, was also synthesized, which is stable only at low temperature. The stability of 2 and 3 and the reactivity of the CCO moiety have been examined and discussed in terms of the electronic and steric characteristics of the ancillary ligands, also taking into account the reactivity of the ‘PtXL2’ fragment with other carbonyl stabilized phosphorus ylides, Ph3PCHCOR (R=Me, Ph, OMe, OEt).