Method for preparing alkynyl 2-halo-2,2-difluoroacetate
US11242307B1 · kind B1 · utility
0Cited by
0References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 1, 2020 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | Oct 1, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C69/63
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for preparing alkynyl 2-halo-2,2-difluoroacetate is disclosed. The method comprises: subjecting a 2-halo-2,2-difluoro acetic acid, an alkynol, and a catalyst to an esterification reaction in a solvent, to obtain alkynyl 2-halo-2,2-difluoroacetate, wherein the catalyst includes one or more of sulfuric acid, phosphoric acid and p-toluenesulfonic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.