Title:
CATALYST COMPOSITION AND METHOD FOR PRODUCING DIARYL CARBONATES, USING BISPHOSPHINES
Document Type and Number:
WIPO Patent Application WO2001079149
Kind Code:
A3
Abstract:
Hydroxyaromatic compounds such as phenol are carbonylated with oxygen and carbon monoxide in the presence of a catalyst system comprising a Group VIIIB metal, preferably palladium; an iodide salt, preferably sodium iodide; and at least one organic bisphosphine such as 1,3-bis(diphenylphosphino)propane or 1,4-bis(diphenylphosphino)butane. The catalyst system also preferably contains a compound of cerium or lead.
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Inventors:
PATEL BEN PURUSHOTAM
SOLOVEICHIK GRIOGORII LEV
OFORI JOHN YAW
SOLOVEICHIK GRIOGORII LEV
OFORI JOHN YAW
Application Number:
PCT/US2001/040036
Publication Date:
March 28, 2002
Filing Date:
February 06, 2001
Export Citation:
Assignee:
GEN ELECTRIC (US)
International Classes:
C07C68/00; (IPC1-7): C07C68/00; C07C69/96; B01J31/24
Foreign References:
| EP0736512A1 | 1996-10-09 | |||
| US5973183A | 1999-10-26 | |||
| US4187242A | 1980-02-05 | |||
| EP0429675A1 | 1991-06-05 |
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