Derivatives and preparation of 2,2-dimethyl-5-substituted phenoxy-pentanoic acids
US5412112A · kind A · utility
1Cited by
8References
12Claims
0Family size
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Key dates
| Filing date | Jun 14, 1994 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Jun 14, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C69/712
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel 3-substituted derivatives of 2,2-dimethyl-5-substituted phenoxy-pentanoic acids of formula (I) are prepared. These compouds are prepared from 2,2-dimethyl-5-substituted phenoxy-3-hydroxy-pentanoic acid-.beta.-lactones (formula II). The .beta.-lactones are prepared by condensing relevant phenoxypropanals with dimethylketene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.