| 摘要 |
PROBLEM TO BE SOLVED: To provide a compound capable of being utilized as an intermediate for producing a cyclopropane carboxylate ester which is an insecticidally active compound known as pyrethroids, and being observable because of having very good insecticidal characteristics and very low toxicity. SOLUTION: The compounds 3-(2, 2-dichloro-3, 3, 3-trifluoro-1- hydroxypropyl)-2, 2-dimethyl-(1R, cis)-cyclopropane carboxylic acid and cis-3-(2,2- dichloro-3, 3, 3-trifluoro-1-hydroxypropyl)-2, 2-dimethyl-cyclopropane carboxylic acid occur as intermediates in a process for the preparation of insecticidally active cyclopropane carboxylate esters.
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