Preparation of 5-aroylpyrrole-2-acetic acid derivatives
US4119639A · kind A · utility
8Cited by
6References
5Claims
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Key dates
| Filing date | Jun 27, 1977 |
| Grant date | Oct 10, 1978 |
| Priority date | — |
| Expiry date | Jun 27, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D339/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The interaction of a 2-aryldithiolanium cation with an appropriate pyrrole-2-acetic acid derivative to give a 5-[2-aryl-2-(1,3-dithiolanyl)]pyrrole-2-acetic acid derivative which is then converted to the corresponding 5-aroylpyrrole-2-acetic acid derivative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.