PROCESSO PARA PREPARACAO DE COMPOSTOS SOB TODAS AS SUAS FORMAS ESTEREOISOMERAS OU EM FORMA DE MISTURAS DE ESTEREOISOMEROS, APLICACAO DOS DITOS COMPOSTOS E COMPOSICOES CONTENDO OS MESMOS

摘要

All stereoisomeric forms and mixtures of stereoisomers of compounds of the formula I wherein X is selected from the group consisting of oxygen, sulfur, sulfoxide and sulfone, R1 and R3 are individually selected from the group consisting of optionally unsaturated alkyl of 1 to 7 carbon atoms and optionally unsaturated cycloalkyl of 3 to 7 carbon atoms optionally substituted with at least one halogen and optionally interrupted with at least one heteroatom and aryl and aralkyl of 6 to 18 carbon atoms and R2 is the residue of a R2OH alcohol used in pyrethrinoids synthesis having pesticidal activity and their preparation and novel intermediates.