MELLEMPRODUKTER TIL FREMSTILLING AF CYCLOPROPANCARBOXYLSYREESTERE

摘要

Compounds of the general formula: wherein each Hal is a halogen atoms and R is a group selected from: wherein R<1> is a hydrogen atom or an alkyl group, or a salt-forming cation, especially in the same stereo-isomeric form as that of the cyclopropane ring in (+)-3-carene, are novel intermediates useful in the manufacture of pyrethroid insecticides.