反应详情

In a manner similar to that of part A of Example 3 condensation of tetrachlorophthalic anhydride (1.92 g.) and N,N,N',N'-tetramethyl-m-phenylenediamine (1.64 g.) in contact with zinc chloride (1.35 g.) and with chlorobenzene (40-45 ml.) as diluent afforded 2-(2,4-bis(dimethylamino)benzoyl)-3,4,5,6-tetrachlorobenzoic acid (II: Y'2 = Y'4 = (CH3)2N, Z4 = Z'5 = Z'6 = Z7 = Cl) (m.p. 199°-201° C.).