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DOI: 10.1039/A607961J (Paper) Reference Section for: J. Chem. Soc., Dalton Trans., 1997, 1831-1838

Novel rhodium complexes with N-pyrrolylphosphines: attractive precursors of hydroformylation catalysts[hair space]

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Anna M. Trzeciak, Tadeusz Głowiak, Ryszard Grzybek and Józef J. Ziółkowski

Abstract

New rhodium(I) complexes with N-pyrrolylphosphine ligands of formula [Rh(acac)(CO){P(NC4H4)3}] 1a, [Rh(acac)(CO){PPh(NC4H4)2}] 1b, [Rh(acac)(CO){PPh2(NC4H4)}] 1c, [Rh(acac){P(NC4H4)3}2 ] 2a, [Rh(acac){PPh(NC4H4)2} 2] 2b and [Rh(acac){PPh2(NC4H4)} 2] 2c (acac = acetylacetonate) have been found to be precursors of very active and selective hydroformylation catalysts as [RhH(CO){P(NC4H4)3}3 ] 3a, [RhH(CO){PPh(NC4H4)2}3 ] 3b and [RhH(CO){PPh2(NC4H4)}3 ] 3c respectively, which at 60 °C and 10 atm H2–CO produce 80–90% of aldehydes with n[hair space]:[hair space]iso 3–31[hair space]:[hair space]1.

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