甲基取代三苯胺类化合物的合成

Synthesis of Methyl-substituted Triphenylamines as Charge Transport Materials

以氯化亚铜、1,10-邻菲咯啉为催化剂,二苯胺及其衍生物与对碘甲苯经U llm ann反应合成了4-甲基三苯胺(MTPA)、4,4′-二甲基三苯胺(DMTPA)和4,4,′4″-三甲基三苯胺(TMTPA),收率分别达到了94.61%、94.76%和94.93%,产物的HPLC纯度都高于99.50%,并用红外光谱、元素分析及质谱对产物结构和组成进行了鉴定。

An improved process was developed for synthesis of 4-methyltriphenylamine （ MTPA ） , 4,4＇- dimethyltriphenylamine（ DMTPA ） and 4,4＇, 4＂-trimethyltriphenylamine （ TMTPA ） through Ullmann reaction of diphenylamine or methyl-substituted diphenylamines with p-iodotoluene using cuprous chloride and 1,10-phenanthroline as catalyst. Under the optimum synthesis conditions, the yields are 94. 61% ,94.76% and 94. 93% respectively,and the HPLC purities are all higher than 99.5%. IR, EA and MS were used to determine the structure and purity of the products.