Method to prepare trimethylsulfonium halides
US5118842A · kind A · utility
1Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1990 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | Nov 16, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C381/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Trimethylsulfonium halides are made by reacting dimethyl sulfide and a methyl halide in the presence of a solvent mixture which includes water and a water-immiscible organic solvent. The organic water-immiscible solvent is generally present in an amount which is at least 40% but no more than 95% of the total solvent mixture. The reaction is preferably conducted under pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.