Organometallics p. 2107 - 2115 (1999)
Update date:2022-09-26
Topics:
Diéguez, Montserrat
Claver, Carmen
Masdeu-Bultó, Anna M.
Ruiz, Aurora
Van Leeuwen, Piet W. N. M.
Schoemaker, Gerard C.
In situ high-pressure IR spectroscopy studies of the rhodium catalyst systems [Rh2{μ-S(CH2)3N(Me2)} 2(COD)2]/PR3 (R = Ph, OPh), [Rh2{μ-S(CH2)2S}(COD)2]/PPh 3, [Rh2{μ-S(CH2)4S}-(COD)2] 2/PPh3, [Rh2{μ-XANTOSS}(COD)2]2/PPh3, and [Rh(acac)(CO)2]/PR3 (R = Ph, OPh) revealed the presence of mononuclear rhodium hydride species under hydroformylation conditions (80°C, 5-30 bar). The activities and selectivities, obtained during the hydroformylation of 1-hexene using these systems as catalyst precursors, can be fully accounted for by the mononuclear species observed. Deuterioformylation experiments using dinuclear [Rh2{μ-S(CH2)3N(Me2)} 2(COD)2]/PR3 systems lent no support to a dinuclear mechanism.
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Doi:10.1246/bcsj.42.1367
(1969)Doi:10.1021/jacs.9b07857
(2019)Doi:10.1002/anie.201904805
(2019)Doi:10.1002/anie.201500819
(2015)Doi:10.1039/a900808j
(1999)Doi:10.1007/BF00908187
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