Preparation of 2-thiophenecarbonyl chloride
US4321399A · kind A · utility
2Cited by
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7Claims
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Key dates
| Filing date | Jun 21, 1978 |
| Grant date | Mar 23, 1982 |
| Priority date | — |
| Expiry date | Jun 21, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D333/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Thiophenecarbonyl chloride is produced in good yields by the direct acylation of thiophene in the presence of aluminum chloride with control of temperature and concentration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.