Process for preparing phthaloyl chloride
US7154003B2 · kind B2 · utility
0Cited by
7References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 13, 2005 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | May 13, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a novel process for preparing phthaloyl chloride (benzene-1,2-dicarbonyl chloride) by reacting phthalic anhydride with phosgene in the presence of a specific N,N-disubstituted formamide as a catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.