47855-02-7

Upstream product

• 94070-40-3 trans-PhOIr(CO)(PPh₃)2 
• 15318-31-7 bis(triphenylphosphine)iridium(I) carbonyl chloride 
• 94070-39-0 trans-n-PrOIr(CO)(PPh₃)2 
• 36462-95-0 Ir(NO)2(P(C₆H₅)3)2⁽¹⁺⁾*PF₆^(1-)=[Ir(NO)2(P(C₆H₅)3)2]PF₆ 
• 67424-53-7 Ir(NO)2(P(C₆H₅)3)2⁽¹⁺⁾ 

Relevant academic research and scientific papers

Carbonylation of metal-oxygen bonds. Formation of carbalkoxydicarbonylbis(triphenylphosphine)iridium, ROC(O)Ir(CO)2(PPh3)2, by carbonylation of trans-alkoxycarbonylbis(triphenylphosphine)iridium, trans-ROIr(CO)(PPh3)2 (R = Me, n-Pr, Ph)

Carbonylation of the complexes trans-MeOIr(CO)(PPh3)2, trans-(n-PrO)Ir(CO)(PPh3)2, and trans-PhOIr(CO)(PPh3)2 leads to carboalkoxy complexes ROC-(O)Ir(CO)2(PPh3)2 in high yield. Identification of the intermediate Ir(CO)3(PPh3)2+ OR- indicates a two-step mechanism - first displacement of the alkoxide from the coordination sphere and then nucleophilic attack on a carbon of the cationic carbonyl complex. The hydroxy complex did not undergo carbonylation under similar conditions.