Modification of supported Pd catalysts by alkalic salts in the selective racemization and dynamic kinetic resolution of primary amines

被引：22
|
作者：
Jin, Qianru [1 ,2 ]
Jia, Guoqing [1 ]
Zhang, Yanmei [1 ]
Li, Can [1 ]
机构：
[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
来源：
CATALYSIS SCIENCE & TECHNOLOGY | 2014年 / 4卷 / 02期
基金：
中国国家自然科学基金;
关键词：
MESOPOROUS SILICA; MESOCELLULAR FOAM; PALLADIUM; LIPASE;
D O I：
10.1039/c3cy00535f
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Supported Pd nanoparticles (PdNPs) were modified with various alkalic salts by incipient wetness impregnation method. The effect of the salts on the catalytic activity and selectivity behavior of Pd catalysts for the racemization of (S)-1-phenylethylamine was investigated. The presence of alkalic salts can greatly enhance the selectivity of Pd catalysts, without significantly decreasing the catalytic activity. This modification method is suitable for PdNPs supported on various supports, such as micro/mesoporous silica and activated carbon. Combined with the immobilized lipases (Novozyme 435), this catalyst system can efficiently catalyze the dynamic kinetic resolution (DKR) of 1-phenylethylamine with yield and enantioselectivity up to 97% and 99%, respectively.
引用
收藏
页码：464 / 471
页数：8
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