Chemical process

Details Chemical process Chemical process

C - Chemistry, Metallurgy

07

C

C07C 67/307 (2006.01) C07C 69/734 (2006.01)

Patent

CA 2141677

Process for preparing the (E)-isomer of a compound (II) by contacting the (E)- or (Z)-isomer of the 2-methylphenyl precur- sor, or a mixture of both, with bromine in an inert organic solvent, in the presence of a polymeric base and light. The product of the process is useful as a chemical intermediate in the manufacture of fungicides such as those described in EP 370629.

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