BIDENTATE LIGANDS FOR THE CARBONYLATION OF UNSATURATED COMPOUNDS

摘要

BIDENTATE LIGAND OF FORMULA 1R1R2M1-R-M2R3R4WHEREIN M1 AND M2 EACH INDEPENDENTLY REPRESENT P, AS OR SB;@R1, R2, R3 AND R4 EACH INDEPENDENTLY REPRESENT THE SAME OR A DIFFERENT OPTIONALLY SUBSTITUTED ORGANIC GROUP AND AT LEAST ONE OF R1, R2, R3 AND R4 CONTAINS A TERTIARY CARBON ATOM THROUGH WHICH THE GROUP IS LINKED TO M1 OR M2; AND R REPRESENTS A BRIDGING GROUP BASED ON A TRIMETHYLENE GROUP CONNECTING M1 AND M2 OF WHICH THE MIDDLE CARBON ATOM IS DOUBLE BONDED TO A NON-METAL ELEMENT CHOSEN FROM GROUP 14, 15 OR 16 OF THE PERIODIC TABLE OF ELEMENTS. CATALYST COMPRISING THIS BIDENTATE LIGAND AND CARBONYLATION PROCESS N WHICH THIS CATALYST IS USED.