Method for obtaining Copper complexes of co lorantes poliazoicos

摘要

Method for obtaining Copper complexes of poliazoicos dyes. The 1,3-dihydroxybenzene is to copulate with a Salt of diazonium Diazo Component of benzene series that takes an amino Group; this coupling is performed in the presence of a compound cededor of Cu2 + ions at a temperature between 20 and 40 C.The product is not just isolated Intermediates before the subsequent reaction with diazo Salt of diazonium component of benzene series with two amino groups. The Compound cededor of Cu2 + ions used is Copper sulfate. Prepared the compound of General formula (i).