Process for preparation of aromatic acid chlorides
US4374770A · kind A · utility
1Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1981 |
| Grant date | Feb 22, 1983 |
| Priority date | — |
| Expiry date | Oct 8, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/58
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a process for converting aromatic aldehydes to the corresponding acid chlorides by reacting an aromatic aldehyde with sulfuryl chloride in the presence of a catalytic amount of a phosphine, phosphine oxide or phosphonium compound. The product compounds produced by the process of this invention are useful as chemical synthesis intermediates in the preparation of pharmaceuticals, dyes, herbicides and photographic chemicals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.