Process for the preparation of ortho-nitro-benzonitriles

摘要

Prodn. of o-nitrobenzonitriles of formula (I) comprises reacting the corresp. o-fluoronitrobenzenes (II) with alkali metal cyanides or cyanide-producing substances in aq. medium in presence of phase transfer catalysts. R<1>, R<2> = H or electron-withdrawing gps.,