CRYSTALLINE TETRAKIS(TRIPHENYLPHOSPHINE) PALLADIUM AND ITS PRODUCTION

摘要

PURPOSE:To provide the subject compound useful for catalystis, etc., and capable of being industrially produced, stored and used by reacting PdCl2 with triphenyl phosphine in a polar solvent, treating the reactional product with hydrazine, filtering the crystals of the reactional product, and subsequently washing the crystals with an alcohol and with a hydrocarbon solvent. CONSTITUTION:Palladium chloride and triphenyl phosphine are added to an aprotic polar solvent (e.g. dimethyl formamide), heated up to 140 deg.C, stirred for one hour, cooled to 80 deg.C, mixed with a 25% hydrazine hydrate aqueous solution with the careful generation of nitrogen gas, stirred at 80-85 deg.C for 30min and subsequently cooled to room temperature. The produced green crystals are filtered, washed with an alcohol and further washed with a hydrocarbon solvent (e.g. n-hexane) to produce crystalline tetrakis(triphenylphosphine) palladium having a melting point of 128-131 deg.C (decomp.) and exhibiting a specific powder X-ray pattern.