| abstract |
An effective and efficient process for the preparation of dialkyl arylmalonates of formula I, <IMAGE> (I) (ring A and R are defined in the specification). In this process, an arylmethylhalide of formula II <IMAGE> (II) is treated with magnesium in an inert solvent, the resulting Grignard reagent is treated with a dialkyl carbonate or an alkyl chloroformiate, and the resulting reaction mixture is treated with a base. |