Method for producing 2-(3-pyrazolyl-oxymethylene) nitrobenzenes

Details Method for producing 2-(3-pyrazolyl-oxymethylene) nitrobenzenes Method for producing 2-(3-pyrazolyl-oxymethylene) nitrobenzenes

C - Chemistry, Metallurgy

07

D

C07D 231/08 (2006.01) C07B 39/00 (2006.01) C07C 205/11 (2006.01)

Patent

CA 2298548

The invention relates to a method for producing 2-(3-pyrazolyl-oxymethylene) nitrobenzene derivatives of formula (I), wherein the substituents and indices have the meaning given in the Description, by bromination of an o-nitrotoluene of formula (II) and subsequent reaction with a 3-hydroxypyrazol of formula (IV).

L'invention concerne un procédé pour la préparation de dérivés de 2-(3-pyrazolyl-oxyméthylène)-nitrobenzène de la formule (I), dans laquelle les substituants et les indices ont la signification donnée dans la description, par bromation d'un o-nitrotoluène de la formule (II), et réaction subséquente avec un 3-hydroxypyrazole de la formule (IV).

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