Kinetic rationalization of nonlinear effects in asymmetric catalysis based on phase behavior

被引:42
|
作者
Klussmann, Martin [1 ]
Mathew, Suju R. [1 ]
Iwamura, Hiroshi [1 ]
Wells, David H., Jr. [1 ]
Armstrong, Alan [1 ]
Blackmond, Donna G. [1 ]
机构
[1] Univ London Imperial Coll Sci & Technol, Dept Chem, London SW7 2AZ, England
关键词
amino acids; asymmetric catalysis; chirality; nonlinear effects; phase transitions;
D O I
10.1002/anie.200602521
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A model of proline as a "kinetic conglomerate" can rationalize both the non-linear effect in proline-catalyzed aldol reactions observed in early studies and the linearity observed more recently, in a manner that remains compatible with the currently accepted one-proline reaction mechanism. Care must be taken to distinguish between equilibrium and kinetic effects in heterogeneous systems - and to separate these physical influences from nonlinear effects of a true chemical origin. (Graph Presented). © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:7989 / 7992
页数:4
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