碳酸二乙酯乙基化邻苯二酚合成邻羟基苯乙醚  

Study on O-hydroxy by ethylation of diethyl carbonate and catechol

作　　者：何天平[1] 马荣胜[1] 张丹慧[2] 简相杰[2] 

机构地区：[1]江苏省安全科学生产研究院,江苏南京210042 [2]江苏工业大学,江苏常州213164

出　　处：《化工进展》2009年第6期1027-1031,共5页Chemical Industry and Engineering Progress

摘　　要：以碳酸二乙酯为乙基化试剂,与邻苯二酚在气固条件下催化合成邻羟基苯乙醚。考察了以NaY分子筛为载体,K2CO3、Mg(OAc)2这两种不同活性组分催化剂的催化性能,着重探讨固体催化剂的酸碱性对催化性能的影响,研究结果表明,碱性越强,产物邻羟基苯乙醚的产率越高,酸性越强,C-乙基化产物的量越高。Vapor phase ethylation of catechol with diethyl carbonate as an alkylation agent was carried out under the catalysis of NaY loaded with K2CO3 or Mg（OAc）2. The catalysts prepared by vacuum impregnation were characterized by BET specific surface area measurement, temperature programmed desorption （NH3-TPD, CO2-TPD） and XRD. Both of the basic sites and the acid sites have important effects on the conversion of catechol. The basic sites are responsible for O-ethylation, while the acid sites are favorable for C-ethylation.

关 键 词：碳酸二乙酯 邻苯二酚 乙基化 NAY分子筛 

分 类 号：O636.1[理学—高分子化学]