The synthesis, characterisation and reactivity of 2-phosphanylethylcyclopentadienyl complexes of cobalt, rhodium and iridium
作者:Ann C. McConnell、Peter J. Pogorzelec、Alexandra M. Z. Slawin、Gary L. Williams、Paul I. P. Elliott、Anthony Haynes、Andrew C. Marr、David J. Cole-Hamilton
DOI:10.1039/b512054c
日期:——
oxidative addition of MeI to [Rh(C(5)H(4)(CH(2))(2)PEt(2))(CO)] and [Rh(Cp'(CH(2))(2)PPh(2))(CO)] are 62 and 1770 times faster than to [Cp*Rh(CO)(2)]. Methyl migration is slower, however. HighpressureNMRstudies show that [Co(Cp'(CH(2))(2)PEt(2))(CO)] and [Cp*Rh(PEt(3))(CO)] are unstable towards phosphine oxidation and/or quaternisation under methanol carbonylation conditions, but that [Rh(Cp'(CH(2))(2)PEt(2))(CO)]