Method of producing aromatic carbonate
US5543547A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1995 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Feb 3, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C68/01
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a method of producing an aromatic carbonate by reacting an aromatic hydroxy compound, carbon monoxide and oxygen using as a catalyst a specified catalyst system containing palladium and cerium compounds. Specifically, the present invention relates to a method of producing an aromatic carbonate by reacting an aromatic hydroxy compound, carbon monoxide and oxygen in the presence of a catalyst containing the following compounds: PA1 (A) at least one selected from palladium and palladium compounds; PA1 (B) at least one of trivalent or tetravalent cerium compounds; PA1 (C) at least one selected from quaternary ammonium salts and quaternary phosphonium salts; PA1 (D) at least one selected from quinones and reduction products thereof, i.e., aromatic diols; or PA1 (A) and (B) components of the above; and PA1 (E) at least one inorganic halide selected from alkali metal halides and alkali earth metal halides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.