Processes for the preparation of 2-thiophenecarbonyl chloride
US10239857B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Mar 31, 2016 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Mar 31, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D333/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided herein are processes for the preparation of 2-thiophenecarbonyl chloride, which is useful, for example, in the preparation of 3,5-disubstituted-1,2,4-oxadiazoles, such as tioxazafen (3-phenyl-5-(2-thienyl)-1,2,4-oxadiazole).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.