HALOGENIZED ESTERS, METHOD FOR THEIR PREPARATION AND APPLICATION AS INTERMEDIATE COMPOUNDS FOR THE PRODUCTION OF INSECTICIDES

摘要

The invention provides novel compounds of formula :CF3-CXC1-CH(OH)CH2-C(CH3)2-CH2-CO2R, wherein X represents chloroor bromo and R represents hydrogen or alkyl of up to 4 carbonatoms, processes for preparing them and their use as intermediatesin the preparation of insecticidal cyclopropane derivatives. Alsoprovided are novel compounds of formula :BrCH2-CH2-C(CH3)2-CH2-CO2R, wherein R represents alkyl of up to 4carbon atoms, useful as intermediates in the preparation of thecompounds of formula (I).17 claims