A continuous method for the manufacture of a 2-aryl-3,3-bis(hydroxyaryl)phthalimidine comprising continuously heating an anhydride with a phenol in the presence of a catalyst and a first co-catalyst, to form a first reaction mixture comprising a phenolphthalein compound; precipitating the phenolphthalein compound; combining a primary arylamine with an acid catalyst and a second co-catalyst to form a second reaction mixture; adding the phenolphthalein compound to the second reaction mixture; continuously heating the second reaction mixture to provide a third reaction mixture comprising a crude phthalimidine; and treating the crude phthalimidine to remove aminophenol and purify the phthalimidine is provided.
一种连续制备2-芳基-3,3-双(羟基芳基)邻苯二
酰亚胺的方法,包括在催化剂和第一辅助催化剂的存在下,连续加热酐和
酚,形成第一反应混合物,其中包括
苯酚酞化合物;沉淀
苯酚酞化合物;将一次芳基胺与酸性催化剂和第二辅助催化剂结合,形成第二反应混合物;将
苯酚酞化合物加入第二反应混合物;连续加热第二反应混合物,得到包含粗邻苯二
酰亚胺的第三反应混合物;并处理粗邻苯二
酰亚胺以去除
氨基
酚并纯化邻苯二
酰亚胺。