Preparation of Mesoporous Silica-Supported Chiral Amino Alcohols for the Enantioselective Addition of Diethylzinc to Aldehyde and Asymmetric Transfer Hydrogenation to Ketones

被引:1
|
作者
Sarkar, Shaheen M. [1 ]
Ali, Md. Eaqub [2 ]
Rahman, Md. Lutfor [1 ]
Yusoff, Mashitah Mohd [1 ]
机构
[1] Univ Malaysia Pahang, Fac Ind Sci & Technol, Gambang 26300, Kuantan, Malaysia
[2] Univ Malaya, Nanotechnol & Catalysis Res Ctr NanoCat, Kuala Lumpur 50603, Malaysia
关键词
HETEROGENEOUS CATALYSTS; RECOVERABLE CATALYSTS; SOLUBLE POLYMERS; MOLECULAR-SIEVES; PD COMPLEX; MCM-41; DIALKYLZINCS; REAGENTS;
D O I
10.1155/2015/381836
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Optically active (-)-ephedrine, (-)-norephedrine, and (-)-prolinol were immobilized onto cubic mesoporous MCM-48 silica. The immobilized amino alcohols served as a heterogeneous chiral catalyst for the asymmetric addition of diethylzinc to aldehydes and transfer hydrogenation to ketones. The developed catalytic process yielded optically enriches secondary aromatic alcohols with 92-99% conversion and 70-82% enantioselectivity.
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页数:6
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