Self-assembled nanoreactors as highly active catalysts in the hydrolytic kinetic resolution (HKR) of epoxides in water

被引:106
作者
Rossbach, BM
Leopold, K
Weberskirch, R
机构
[1] Tech Univ Munich, Lehrstuhl Makromol Stoffe, Dept Chem, D-85747 Garching, Germany
[2] Tech Univ Munich, Dept Chem, Lehrbereich Anorgan Chem, Arbeitskreis Analyt Chem, D-85747 Garching, Germany
关键词
epoxides; immobilization; kinetic resolution; polymers; self-assembly;
D O I
10.1002/anie.200503291
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
CoIII(salen) complexes have been immobilized on amphiphilic block copolymers, which self-assemble in water to give micellar aggregates with a hydrophobic Co(salen) core and a water-soluble shell (see picture). These aggregates were used to catalyze the hydrolytic kinetic resolution (HKR) of racemic aromatic epoxides over four consecutive cycles and gave the epoxides in up to 99 % ee. H2salen = N,N′-bis(salicylidene)ethylenediamine. (Chemical Equation Presented). © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:1309 / 1312
页数:4
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