Improvement of ligand economy controlled by polymer morphology:: The case of polymer-supported bis(oxazoline) catalysts

被引：28

作者：

Burguete, MI

Díez-Barra, E

Fraile, JM

García, JI

García-Verdugo, E

González, R

Herrerías, CI

Luis, SV

Mayoral, JA

机构：

[1] Univ Castilla La Mancha, Dept Quim Organ, E-13071 Ciudad Real, Spain

[2] Univ Jaume 1, ESTCE, Dept Quim Inorgan & Organ, E-12080 Castellon de La Plana, Spain

[3] Univ Zaragoza, CSIC, Inst Ciencia Mat Aragon, Dept Quim Organ, E-50009 Zaragoza, Spain

来源：

BIOORGANIC & MEDICINAL CHEMISTRY LETTERS | 2002年 / 12卷 / 14期

关键词：

D O I：

10.1016/S0960-894X(02)00259-7

中图分类号：

R914 [药物化学];

学科分类号：

100701 ;

摘要：

A functionalized chiral bis(oxazoline) is used as a chiral monomer in polymerization reactions leading to homo- and copolymers of different morphology. Polymers with a high content of chiral monomer lead to enantioselectivities that are higher than those obtained with the soluble ligand, but the chiral ligand is not used in an optimal way. A hyperbranched polymer, obtained by using a hexavinyldendrimer as the cross-linker, leads to the same enantioselectivities with a more efficient use of the chiral ligand. (C) 2002 Elsevier Science Ltd. All rights reserved.

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页码：1821 / 1824

页数：4

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