Process for the preparation of herbicides

Details Process for the preparation of herbicides Process for the preparation of herbicides

C - Chemistry, Metallurgy

07

C

260/559, 260/489

C07C 253/30 (2006.01) A01N 37/34 (2006.01) C07C 255/50 (2006.01)

Patent

CA 1289572

ABSTRACT PROCESS FOR THE PREPARATION OF HERBICIDES The invention relates to a process for the preparation of a compound of formula I Image I R is alkyl, and X is bromine or iodine which process comprises : reacting a compound of formula II in a two phase system, said system comprising an aqueous phase and an organic phase comprising a water immiscible solvent, with an acylating agent of formula III or IV in the presence of D base catalyst. Image Image Image II III IV

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