Process for selective hydrodefluorination

Details Process for selective hydrodefluorination Process for selective hydrodefluorination

C - Chemistry, Metallurgy

07

C

C07C 63/68 (2006.01) C07C 51/00 (2006.01) C07C 51/06 (2006.01) C07D 209/48 (2006.01)

Patent

CA 2083251

CASE 6448 ASC/kmf PROCESS FOR SELECTIVE HYDRODEFLUORINATION ABSTRACT A process for the selective hydrodefluorination of a tetrafluorophthalimide compound of the formula Image I where X is 1 and R is a monovalent organo group; or X is 2 and R is a divalent organo group; comprises reacting (I) the tetrafluorophthalimide with zinc in an aqueous alkali metal hydroxide medium. The product may be hydrolyzed to form 3,4,6-trifluorophthalic acid.

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