An NMR study of cobalt-catalyzed hydroformylation using para-hydrogen induced polarisation
作者:Cyril Godard、Simon B. Duckett、Stacey Polas、Robert Tooze、Adrian C. Whitwood
DOI:10.1039/b815853c
日期:——
The syntheses of Co(eta3-C3H5)(CO)2PR2R' (R, R' = Ph, Me; R, R' = Me, Ph; R = R' = Ph, Cy, CH2Ph) and Co(eta3-C3H5)(CO)(L) (L = dmpe and dppe) are described, and X-ray structures for Co(eta3-C3H5)(CO)(dppe) and the PPh2Me, PCy3 derivatives reported. The relative ability of Co(eta3-C3H5)(CO)2(PR2R') to exchangephosphine for CO follows the trend PMe2Ph < PPh2Me < PCy3 < P(CH2Ph)3 < PPh3. Reactions of the