PROCESS TO PREPARE A TERMINAL ALDEHYDE

摘要

PROCESS FOR THE PREPARATION OF A TERMINAL ALDEHYDE BY HYDROFORMYLATION BY REACTING AN ETHYLENICALLY UNSATURATED ORGANIC COMPOUND WITH CARBON MONOXIDE AND HYDROGEN IN THE PRESENCE OF A CATALYST SYSTEM COMPRISING IRIDIUM OR RHODIUM AND A BIDENTATE ORGANIC PHOSPHITE LIGAND WHEREIN THE TWO PHOSPHORUS ATOMS OF THE PHOSPHITE LIGAND ARE LINKED WITH A 2,2''''-DIHYDROXYL-1,1''''-BINAPTHALENE BRIDGING GROUP HAVING THE FOLLOWING STRUCTURE (Q): ( FORMULA 1 ) IN WHICH R1 AND R2 ARE SUBSTITUENTS OTHER THAN HYDROGEN AND IN WHICH R3 AND R4 ARE THE SAME OR DIFFERENT SUBSTITUTED MONOVALENT ARYL GROUPS AND/OR ANY ONE OF OR3 AND OR4 CONNECTED TO ONE PHOSPHORUS ATOM FORMS AN O-R5-O-GROUP, WHERE R5 IS A DIVALENT ORGANIC GROUP CONTAINING ONE OR TWO ARYL GROUPS.