1,2-二取代-1,4,5,6-四氢嘧啶型相转递催化剂的合成研究

• 作 者: 方景昌
• 机 构: 福州市化工研究所,
• 出 处: 化学工程与装备
• 发表日期: 1985年01期
• 关键词: 非均相反应 四氢嘧啶 加速反应 极性溶剂 石油公司 生产意义 混溶 反应系统 有机相 相界面

一、引言美国大陆石油公司的C.M.Starks等人,早在六十年代中就已发现在非均相反应中使用催化剂可以加速反应速度.先前认为反应物分别在两种不同极性溶剂中,二者不能混溶,这样两相只能在相界面处靠官能基传递,所以反应难以进行或反应相当慢,以致没有工业生产意义.但发现如果在反应系统中另加入催化量有机季盐[RnM~+]X~-,结果得到非常快的反应速度.

I. INTRODUCTION CMStarks et al. Of Continental Oil Company have found that the use of catalysts in heterogeneous reactions accelerated the reaction as far back as the 1960s. It was previously thought that the reactants, in two different polar solvents, respectively, Can not be miscible, so that the two phases can only be based on functional groups at the interface, so the reaction is difficult or slow reaction, so there is no industrial significance, but found that if the reaction system with additional catalytic quaternary organic salts [RnM ~ +] X ~ -, the result is very fast reaction speed.