Process for preparing carboxylic acid derivative
US5723628A · kind A · utility
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11Claims
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Key dates
| Filing date | Aug 22, 1996 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Aug 22, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D333/34
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There is described a process for preparing 3-(2-thienylthio)butyric acid by converting a compound having the formula (III): ##STR1## wherein R is a straight chain or branched C.sub.1 to C.sub.4 alkyl group, whereby the production of 3-(3-thienylthio)butyric acid as a by-product which is the position isomer can be controlled to at most 0.1 mol %. 3-(2-Thienylthio)butyric acid is a useful compound as an intermediate for a medicinal compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.