| abstract |
The present invention relates to a novel process for the preparation of halogen-substituted benzoylacetonitriles of the formula <IMAGE> in which X<1> and X<2> are identical or different and represent hydrogen or halogen and X<3> represents halogen, which is characterised in that 1-chloroacetophenone of the formula (II) <IMAGE> in which X<1>, X<2> and X<3> have the abovementioned meanings, are reacted with water-soluble alkali metal cyanides in the presence of diluents and the mixture is subsequently acidified with a mineral acid, and to 1-chloro-2-(2,4-dichloro-5-fluorophenyl)ethan-2-one, which is novel, and to a process for its preparation. |