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1. (WO2003078444) BISPHOSPHITE LIGANDS FOR CARBONYLATION PROCESSES

Pub. No.:    WO/2003/078444    International Application No.:    PCT/US2003/006456
Publication Date: Sep 25, 2003 International Filing Date: Mar 4, 2003
IPC: C07C 45/49
C07C 45/50
C07C 67/293
C07C 67/347
C07F 9/6574
C07F 15/00
Applicants: UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORPORATION
PENG, Wei-Jun
BRYANT, David, Robert
Inventors: PENG, Wei-Jun
BRYANT, David, Robert
Title: BISPHOSPHITE LIGANDS FOR CARBONYLATION PROCESSES
Abstract:
A novel organophosphorus composition and synthesis thereof, the composition being characterized by one phosphite moiety, one phosoxophite moiety, and a plurality of sterically bulky substituents. The novel composition finds utility as a ligand in Group VIII transition metal phosoxophite complex catalysts and complex catalyst precursors that are used in carbonylation processes, preferably, hydroformylation processes. Additionally, there is disclosed a novel method of preparing a phosphoromonochloridite composition that finds utility as a precursor to the novel phosoxophite composition.