材料期刊网，材料期刊，材料类期刊，材料期刊投稿

论文(2)
图书()
专利()
新闻()

原词结果 | 译词结果

Solvent-Free Selective Cross-Aldol Condensation of Ketones with Aromatic Aldehydes Efficiently Catalyzed by a Reusable Supported Acidic Ionic Liquid

Abolghasem DAVOODNIA* , Ghazaleh YASSAGHI

催化学报 doi:10.1016/S1872-2067(11)60470-1

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.

关键词: cross-aldol condensation, solvent-free condition, supported acidic ionic liquid , ketone , aromatic aldehyde

改性Fe-Cu催化剂上由合成气合成酮和醇

苏运来 , 刘博 , 裴素朋 , 王向宇 , 刘中民

催化学报

采用熔融法制备了三类改性催化剂FeCuVKMn,FeCuVKCe和FeCuVKCo,可用于有效地合成低级酮和低碳醇. 在一定的温度范围内,CO转化率、C2+OH选择性及酮和醇的收率随反应温度的升高而升高; FeCuVKCo表现出比其他催化剂更宽的活性温度区间; 适量加入助剂可使Fe-Cu催化剂的催化性能显著改善. 催化剂活性及选择性的高低顺序是FeCuVKMn》FeCuVKCo》FeCuVKCe》FeCuVK; 最高活性温度的高低顺序是FeCuVK=FeCuVKCe》FeCuVKMn》FeCuVKCo.

关键词: 低碳醇 , 酮 , 合成气 , 铁-铜基催化剂

材料期刊网

Solvent-Free Selective Cross-Aldol Condensation of Ketones with Aromatic Aldehydes Efficiently Catalyzed by a Reusable Supported Acidic Ionic Liquid

改性Fe-Cu催化剂上由合成气合成酮和醇

出版年份

刊物分类

相关作者

相关热词