β-Cyclodextrin Immobilized onto Dowex Resin： A Unique Microvessel and Heterogeneous Catalyst in Nucleophilic Substitution Reactions  

作　　者：Kiasat, Ali Reza Zarinderakht, Nasrollah Sayyahi, Soheil 

机构地区：[1]Chemistry Department, College of Science, Shahid Chamran University, Ahvaz 61357-4-3169, Iran

出　　处：《Chinese Journal of Chemistry》2012年第3期699-702,共4页中国化学（英文版）

摘　　要：The catalytic activity ofβ-cyclodextrin immobilized on Dowex resin as an efficient solid-liquid phase transfer catalyst was developed for the synthesis of alkyl thiocyanates and phenacyl derivatives in water. The nucleophilic substitution reactions were performed under mild reaction condition and gave the products in excellent yields. Fur thermore, the catalyst could be recycled by facile separation without any loss of activity.The catalytic activity ofβ-cyclodextrin immobilized on Dowex resin as an efficient solid-liquid phase transfer catalyst was developed for the synthesis of alkyl thiocyanates and phenacyl derivatives in water. The nucleophilic substitution reactions were performed under mild reaction condition and gave the products in excellent yields. Fur thermore, the catalyst could be recycled by facile separation without any loss of activity.

关 键 词：heterogeneous catalyst β-cyclodextrin immobilization nucleophilic substitution alkyl thiocyanate phenacyl derivatives 

分 类 号：O621.255[理学—有机化学] TQ426.6[理学—化学]