相转移催化法制备对甲氧基苯甲酸  

Preparation of P-Methoxybenzoic Acid by Phase Transfer Catalysis

作　　者：袁鹏 章丽 冯永胜 Yuan Peng;Zhang Li;Feng Yong-sheng

机构地区：[1]浙江圣效化学品有限公司,浙江衢州324000

出　　处：《化工设计通讯》2020年第12期47-48,共2页Chemical Engineering Design Communications

摘　　要：对甲氧基苯甲酸又称为茴香酸,是一种医药和香料的中间体。传统工艺以对羟基苯甲酸和硫酸二甲酯为原料,在氢氧化钠为催化剂的条件下反应制得,生产过程中产生大量酸性废水。采用对甲基苯甲醚相转移催化剂制备对甲氧基苯甲酸,相比传统工艺更为环保、节约和高效。P-Methoxybenzoic acid,also known as anisic acid,is an intermediate of medicine and spices.(Application)The traditional process uses p-hydroxybenzoic acid and dimethyl sulfate as raw materials,and is prepared by reacting with sodium hydroxide as a catalyst.A large amount of acidic wastewater is produced during the production process.In this paper,p-methylanisole phase transfer catalyst is used to prepare p-methoxybenzoic acid,which is more environmentally friendly,economical and efficient than traditional processes.

关 键 词：相转移化 制备 对甲氧基苯甲酸 

分 类 号：TQ245[化学工程—有机化工]