双催化剂法合成结晶玫瑰  

Preparation of Crystal Rose by Bi-catalysts Method

作　　者：赵怡红[1] 赵辉爽[1] 

机构地区：[1]常州工程职业技术学院应用化学技术系,江苏常州213164

出　　处：《江苏化工》2007年第6期29-31,共3页Jiangsu Chemical Industry

摘　　要：以苯甲醛和氯仿为原料用双催化剂法催化合成了结晶玫瑰,并通过正交实验对合成过程中各项条件进行优化,该法最优的合成条件为:n(苯甲醛)∶n(氯仿)∶n(氢氧化钾)=1∶1.5∶1.1,最佳反应温度为10℃,反应时间是3h,在该条件下结晶玫瑰的产率最高为90%。Crystal rose was synthesized by benzene formaldehyde with assistance of two kind of catalysts,using dry chloroform as raw material.The intermediate product was trichloromethyl benzyl alcohols that further reacted with acetic acid to prepare the crystal rose.We changed the productive technology and determined the optimal condition of each step for synthesis of crystal rose through orhto test:the ratio of benzaldehyde to dry chloroform and potassium hydroide should be 1∶1.5∶1.1.When the reaction was performed at 10 ℃ for 3 h,the yield of 90% could be achieved.

关 键 词：结晶玫瑰 苯甲醛 氯仿 双催化剂法 

分 类 号：TQ655[化学工程—精细化工]