Use of 1,2,3-thiadiazole carboxylic acid (thio)esters for...

C - Chemistry – Metallurgy – 07 – D

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C07D 285/06 (2006.01) A01N 43/82 (2006.01) A01N 43/828 (2006.01) C07D 417/12 (2006.01)

Patent

CA 2239710

The invention relates to the use of partially known 1,2,3-thiadiazole carboxylic acid (thio)esters of formula (I), in which R1 is hydrogen, optionally substituted alkyl or optionally substituted aryl; R2 is optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted cycloalkenyl or optionally substituted aryl; and Q is oxygen or sulphur, and the use of acid addition salts and metal salt complexes of said esters to protect plants well from attack by undesirable micro-organisms and to control animal pests. Particular 1,2,3-thiadiazole carboxylic acid (thio)esters of formula (I) are novel.

L'invention concerne l'utilisation de (thio)esters d'acide 1,2,3-thiadiazolcarboxylique en partie connus, de formule (I), dans laquelle R?1¿ représente hydrogène, alkyle éventuellement substitué ou aryle éventuellement substitué; R?2¿ représente alkyle éventuellement substitué, cycloalkyle éventuellement substitué, cycloalcényle éventuellement substitué ou aryle éventuellement substitué et Q représente oxygène ou soufre, ainsi que l'utilisation des sels d'addition d'acide et complexes de sels métalliques desdits (thio)esters d'acide 1,2,3-thiadiazolcarboxylique pour protéger les végétaux contre l'attaque de micro-organismes indésirables et pour lutter contre les parasites animaux. Certains (thio)esters d'acide 1,2,3-thiadiazolcarboxylique de la formule (I) constituent de nouveaux composés.

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