Method for preparing triarylsulfonium salts
US5705702A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1996 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Sep 12, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C381/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
By reacting an aryl Grignard reagent of the following general formula (1) with thionyl chloride and then reacting the reaction product with a triorganosilyl sulfonate or triorganohalide of the general formula (2): (R.sup.6).sub.3 SiY wherein R.sup.6, which may be the same or different, is a monovalent hydrocarbon group and Y is a substituted or unsubstituted alkylsulfonate or arylsulfonate or halogen atom, there is prepared a triarylsulfonium salt of the following general formula (3). ##STR1## In the formulae, each of R.sup.1 to R.sup.5, which may be the same or different, is a hydrogen atom or a monovalent organic group, especially alkyl, aryl, alkoxy, aryloxy, dialkylamino, dialkylaminoalkyl, alkylthio or arylthio group and X is a bromine or chlorine atom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.