Process for preparing cis-3-(2,2-dihalovinyl)-2,2-dimethylcyclopropanecarboxylic acid
US4513147A · kind A · utility
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6Claims
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Key dates
| Filing date | Mar 30, 1981 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | Mar 30, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C62/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel lactones of 2,2-dimethyl-cyclopropane-1-carboxylic acids of the formula ##STR1## wherein X.sub.1, X.sub.2 and X.sub.3 when identical are selected from the group consisting of chlorine and bromine and when at least two are different, are selected from the group consisting of fluorine, chlorine and bromine and a novel process for their preparation and a process for the preparation of cis 2,2-dimethylcyclopropane-1-carboxylic acids of the formula ##STR2##
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