Purifying process of tetrakis (fluoroaryl) borate.magnesium halide, tetrakis (fluoroaryl) borate.ether complex and producing process of the same, and producing process of tetrakis (fluoroaryl) borate derivative

摘要

Tetrakis(fluoroaryl)borate.magnesium halide (Ar₄BMgX) expressed by General Formula (1): chemistry chemdraw filechemistry mol file;where each of R₁-R₁₀ represents a hydrogen atom, a fluorine atom, a hydrocarbon group, or an alkoxy group, provided that at least one of R₁-R₅ represents a fluorine atom and at least one of R₆-R₁₀ represents a fluorine atom, X represents a chlorine atom, a bromine atom, or an iodide atom, and n represents 2 or 3, ;is treated with alkali metal salts of carboxylic acid and/or alkali earth metal salts of carboxylic acid. Then, a tetrakis(fluoroaryl)borate derivative (Ar₄BZ) is produced by reacting treated Ar₄BMgX with a compound generating monovalent cation seeds (for example, N,N-dimethylaniline.hydrochloride). Consequently, it has become possible to provide a purifying process of separating/removing impurities from Ar₄BMgX readily and efficiently, and a process of producing inexpensive Ar₄BX efficiently.