Pesticidal fluoroolefins

C - Chemistry – Metallurgy – 07 – C

Patent

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Details

C07C 43/29 (2006.01) A01N 29/08 (2006.01) A01N 31/14 (2006.01) A01N 35/04 (2006.01) C07C 25/24 (2006.01) C07C 49/813 (2006.01)

Patent

CA 2187918

A pesticidal compound of formula (I) in which R1 is hydrogen and R2 represents a cyclopropyl group or R1 and R2 each represents an alkyl group, which alkyl groups may be the same or different; ArA represents an optionally substituted phenyl or naphthyl group; ArB represents a phenoxy, phenyl, benzyl or benzoyl- substituted phenyl groups which is optionally further substituted; the configuration of the groups ArA-CR1R2 and -CH2ArB about the double bond being mutually <u>trans</u>. Preferably ArA is a substituted phenyl group; more preferably being substituted at the 4-(para) position by halogen, alkoxy or haloalkyl. Further provided is a process for the preparation of a pesticidal compound of formula (I) in which a compound comprising a moiety (a) and a compound comprising the moiety ArB- are reacted together forming a link - CH=C(F)CH2- between (a) and Arb in the compound of formula (I).

Un composé pesticide correspond à la formule (I) dans laquelle R?1¿ représente hydrogène, et R?2¿ un groupe cyclopropyle, soit ils représentent chacun un groupe alkyle, les groupes étant identiques ou différents; Ar¿A? représente un groupe phényle ou naphtyle éventuellement substitué; Ar¿B? représente un groupe phényle éventuellement substitué par phénoxy, phényle, benzyle ou benzoyle; la configuration des groupes Ar¿A?-CR?1¿R?2¿ et -CH¿2?AR¿B? autour de la double liaison étant mutuellement <u>trans</u>. Ar¿A? représente de préférence un groupe phényle substitué, surtout s'il est substitué en position 4-(para) par halogène, alcoxy ou haloalkyle. L'invention concerne également un procédé de préparation d'un composé pesticide correspondant à la formule (I) dans lequel un composé comprenant la fraction (a) et un composé comprenant une fraction Ar¿b? réagissent ensemble pour former une liaison -CH=C(F)CH¿2?- entre (a) et Ar¿B? dans le composé de formule (I).

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