Process for the sulfonation of an aromatic compound
US6455738B1 · kind B1 · utility
9Cited by
15References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2000 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Jul 13, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C315/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A subject-matter of the present invention is a process for the sulfonation of an activated or deactivated aromatic compound. The invention applies to the preparation of aromatic sulfones. The process for the sulfonation of an aromatic compound according to the invention comprises the reaction of said aromatic compound with a sulfonating agent, in particular an aryl or alkyl sulfonating agent, in the presence of a catalytically effective amount of a mixture of a bismuth trihalide and of perfluoroalkanesulfonic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.