Photocatalytic oxidation synthesis method of diphenylmethanol ester

The invention discloses a photocatalytic oxidation synthesis method of diphenylmethanol ester. The method is characterized in that diphenylmethanol and carboxylic acid are used as reaction substrates,2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) and tert-butyl nitrite (TBN) are used as a catalyst, and oxygen is used as an oxidant, in the presence of 3A or 4A molecular sieves, the reaction substrates react in the 1,2-dichloroethane solvent under conditions of room temperature, normal pressure and blue light irradiation, and after the reaction ends, a diphenylmethanol ester compound is obtained by separation treatment. According to the invention, by replacing the traditional heating reaction with light reaction, the energy is saved; and the reaction is environmentally friendly by using oxygen as the oxidant. 本发明公开了种二苯甲醇酯的光催化氧化合成方法，其特征在于：以二苯甲醇和羧酸为反应底物，以2,3-二氯-5,6-二腈基-1,4-苯醌(DDQ)和亚硝酸叔丁酯(TBN)为催化剂，以氧气为氧化剂，在3A或者4A分子筛的存在下，反应底物在1,2-二氯乙烷溶剂中，常温常压并在蓝光照射条件下进行反应，反应结束后经分离处理得到所述的二苯甲醇酯类化合物。本发明以光照反应替代了传统的加热反应，可节约能源；以氧气为氧化剂，反