Process for producing compounds having an oxazolidone ring using a complex of aluminum halide catalyst
US4022721A · kind A · utility
20Cited by
8References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1975 |
| Grant date | May 10, 1977 |
| Priority date | — |
| Expiry date | Sep 15, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process is disclosed for producing a compound, having an oxazolidone ring, by reacting an isocyanate compound and an epoxy compound wherein said reaction is catalytically promoted in the presence of an effective amount of a complex of a Lewis acid, especially a certain metal halide, with at least one Lewis base select from an ether, a thioether, an amine, a lactam, an amide, or a certain phosphorus or sulfur compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.