Process for the preparation of diaryl compounds of the formula ##STR1## by reacting of acylamino-aryl-compounds of the formula ##STR2## WITH ARYL COMPOUNDS OF THE FORMULA ##STR3## IN THE PRESENCE OF METALLIC COPPER OR ITS MIXTURE WITH COPPER SALTS, OPTIONALLY IN THE PRESENCE OF CATALYSTS, IN A SOLVENT WHICH IS INERT UNDER THE REACTION CONDITIONS, AT TEMPERATURES OF 20.degree. TO 200.degree. C. In the formulae A and B represent an aromatic ring system, R represents acyl and X represents a nitro, nitrile, carboxylic ester, acyl or --NH--R group.
通过在惰性反应条件下,在20°C至200°C的温度下,在存在
金属
铜或其与
铜盐的混合物的情况下,通过使式##STR1##的酰胺基芳基化合物与式##STR2##的芳基化合物在溶剂中与式##STR3##的芳基化合物反应,可选地在催化剂的存在下,制备式##STR1##的二芳基化合物的方法。在公式中,A和B代表芳香环系统,R代表酰基,X代表硝基、腈基、
羧酸酯基、酰基或--NH--R基团。