无溶剂条件下可重复使用的担载的酸性离子液体催化剂高效催化酮和芳香醛选择性Cross-Aldol缩合反应(英文)

作     者：Abolghasem DAVOODNIA Ghazaleh YASSAGHI 

作者机构：Department of ChemistryMashhad BranchIslamic Azad University 

出 版 物：《催化学报》 (Chinese Journal of Catalysis)

年 卷 期：2012年第33卷第12期

页      面：1950-1957页

核心收录：

学科分类：081705[工学-工业催化] 0817[工学-化学工程与技术] 08[工学] 0703[理学-化学] 

基　　金：supported by Islamic Azad University Mashhad Branch 

主　　题：化学 燃烧 原理 催化 

摘      要：A newly prepared catalyst consisting of acidic ionic liquid 1-(4-sulfonic acid)butylpyridinium hydrogen sulfate supported on silica was used to catalyze the cross-aldol condensation of ketones with aromatic aldehydes under solvent-free conditions. The highly active and selective catalyst gave good to excellent yields of the desired cross-aldol products without the occurrence of any self-condensation reactions. Reaction times were short, the procedure and work-up were simple, and no volatile or hazardous organic solvents were necessary. Moreover, the catalyst could be reused at least four times with only a slight reduction in activity.