Process for preparing dihalovinylcyclopropanecarboxylic acids

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof

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560102, 560118, 560124, 562492, 562500, C07C 69743

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active

045007330

ABSTRACT:
A cyclopropanecarboxylic acid of the formula ##STR1## is prepared by the reaction of a compound of the formula ##STR2## with an alkali metal hydroxide or alkaline earth metal hydroxide in an ether type solvent. R.sup.1, R.sup.2, and R.sup.4 each independently is hydrogen or a hydrocarbon residue, R.sup.3 is hydrogen or lower alkyl, X is halogen, and A is --CH.sub.2 --CX, 3 or --CH.dbd.CX.sub.2.

REFERENCES:
patent: 3123629 (1964-03-01), Julia
patent: 3354196 (1967-11-01), Julia
patent: 3658879 (1972-04-01), Julia
patent: 4000180 (1976-12-01), Punja
Morrison, et al., "Organic Chemistry," 2nd ed., pp. 940-941, (1966).
Parham, "Syntheses and Reactions in Organic Chemistry," p. 216.

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