Methyl .alpha.-phenylbutenoates

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 231/14 (2006.01) A01N 43/48 (2006.01) A01N 43/56 (2006.01) A01N 43/64 (2006.01) A01N 43/713 (2006.01) A01N 43/72 (2006.01) C07D 231/08 (2006.01) C07D 231/20 (2006.01) C07D 401/04 (2006.01) C07D 403/04 (2006.01) C07D 405/04 (2006.01) C07D 409/04 (2006.01) C07D 413/04 (2006.01) C07D 417/04 (2006.01)

Patent

CA 2189368

.alpha.-phenylbutenic acid methyl esters of formula (I) are disclosed, wherein <u>--</u> represents a single or double bond and the index and substituents have the following meanings: n is 0, 1, 2, 3, or 4; R1 represents nitro, cyano, halogen, alkyl, alkyl halide or alkoxy; R2 represents hydrogen, nitro, cyano, halogen, alkyl, alkyl halide, alkoxy, alkylthio or alkoxycarbonyl; R3 represents optionally substituted alkyl, alkenyl or alkinyl; an optionally substituted saturated or mono or biunsaturated ring which in addition to carbon atoms can contain 1-3 heteroatoms chosen from oxygen, sulphur and nitrogen, as ring members, or an optionally, substituted mono or binuclear aromatic group which in addition to carbon atoms can contain 1-4 nitrogen atoms or one or two nitrogen atoms and an oxygen or sulphur atom or an oxygen or sulphur atom as ring members. Also disclosed is a process for the production of the claimed compounds and the use thereof against harmful fungi or animal pests.

L'invention concerne des méthylesters de l'acide .alpha.-phénylbuténique de la formule (I), dans laquelle <u>--</u> représente une liaison simple ou double, et l'indice et les substituants ont la signification suivante: n vaut 0, 1, 2, 3 ou 4; R?1¿ représente nitro, cyano, halogène, alkyle, halogénure d'alkyle ou alcoxy; R?2¿ représente hydrogène, nitro, cyano, halogène, alkyle, halogénure d'alkyle, alcoxy, alkylthio ou alcoxycarbonyle; R?3¿ représente alkyle, alcényle ou alkinyle éventuellement substitué; un noyau éventuellement substitué, saturé, ou mono insaturé ou bi-insaturé qui, en plus des atomes de carbone, peut contenir, comme éléments, 1 à 3 hétéroatomes choisis parmi oxygène, soufre et azote, ou bien un groupe aromatique mononucléaire ou binucléaire éventuellement substitué qui, en plus des atomes de carbone, peut contenir, comme élément, 1 à 4 atomes d'azote ou un ou deux atomes d'azote et un atome d'oxygène ou de soufre ou un atome d'oxygène ou de soufre. L'invention concerne également un procédé de production des composés revendiqués et l'utilisation de ces composés contre des champignons ou des animaux nuisibles.

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