(Bbpy)(HSO_4)_2无卤素可重复使用 Brnsted 离子液体催化剂用于一锅法多组分合成非对称多氢喹啉衍生物（英文）  

One-pot multicomponent synthesis of unsymmetrical polyhydroquinoline derivatives with 1,1'-butylenebispyridinium hydrogen sulfate as an efficient, halogen-free and reusable Brnsted ionic liquid catalyst

作　　者：Nader Ghaffari Khaligh 

机构地区：[1]Research House of Professor Reza,Education Guilan,Rasht,District1,41569-17139,Iran

出　　处：《催化学报》2014年第9期1497-1503,共7页

摘　　要：1,1'‐Butylenebispyridinium hydrogen sulfate is an efficient, halogen‐free and reusable Brnsted ionic liquid catalyst for the synthesis of ethyl‐4‐aryl/heteryl‐hexahydro‐trimehtyl‐5‐ oxoquino‐line‐3‐carboxylates by the one‐pot condensation of dimedone, aryl/heteryl aldehydes, ethyl aceto‐acetate, and ammonium acetate under solvent‐free conditions. This method has the advantages of high yield, clean reaction, simple methodology, and short reaction time. The ionic liquid can be re‐cycled five times without significant loss of the catalytic activity.1,1＇-Butylenebispyridinium hydrogen sulfate is an efficient, halogen-free and reusable Br？nsted ionic liquid catalyst for the synthesis of ethyl-4-aryl/heteryl-hexahydro-trimehtyl-5-oxoquino-line-3-carboxylates by the one-pot condensation of dimedone, aryl/heteryl aldehydes, ethyl aceto-acetate, and ammonium acetate under solvent-free conditions. This method has the advantages of high yield, clean reaction, simple methodology, and short reaction time. The ionic liquid can be re-cycled five times without significant loss of the catalytic activity.

关 键 词：离子液体催化剂 可重复使用 硫酸氢 羧酸盐 无卤素 一锅法 合成 布朗 

分 类 号：O626.323[理学—有机化学]