Method for preparing bromodifluoroacetic compounds
US6906219B2 · kind B2 · utility
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1References
18Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 18, 2002 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Jan 20, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a method for preparing bromodifluoroacetic compounds which comprises converting a 1,1-difluoro-1,2-dibromodihaloethane with oleum having 50-70% SO3 to a bromodifluoroacetyl halide (bromide or chloride) and then in reacting the latter directly with either an alcohol, or with water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.