Patent ID: 6129863
Filing Date: 2000-10-10
Classification: C07F

Abstract:
A process which comprises:a) forming a mixture comprising (i) hydrocarbyl Grignard reagent, (ii) at least one polyhaloaromatic compound in which one position on the aromatic ring(s) is substituted by a hydrogen atom or a halogen atom other than a fluorine atom, and in which each of the other positions on the aromatic ring(s) is substituted by a fluorine atom, a hydrocarbyl group, an alkoxy group, or a perfluorinated hydrocarbyl group, and (iii) an anhydrous liquid organic reaction medium, in which the molar ratio of (i) to (ii) is greater than 1, such that a reaction product mixture is formed comprising perfluoroaryl Grignard reagent and excess hydrocarbyl Grignard reagent; andb) mixing with at least a portion of said reaction product mixture produced in a) an amount of at least one polyhaloaromatic compound in which one position on the aromatic ring(s) is substituted by a hydrogen atom or a halogen atom other than a fluorine atom, and in which each of the other positions on the aromatic ring(s) is substituted by a fluorine atom, a hydrocarbyl group, an alkoxy group, or a perfluorinated hydrocarbyl group, at least sufficient to react with said excess hydrocarbyl Grignard reagent to thereby produce a further reaction product mixture composed predominately of perfluoroaryl Grignard reagent and anhydrous liquid organic reaction medium.