Zinc Complexes of Sequential Tetradentate Monoanionic Ligands in the Isoselective Polymerization of rac-Lactide

被引：66
|
作者：
Rosen, Tomer [1 ]
Popowski, Yanay [1 ]
Goldberg, Israel [1 ]
Kol, Moshe [1 ]
机构：
[1] Tel Aviv Univ, Sch Chem, IL-69978 Tel Aviv, Israel
来源：
CHEMISTRY-A EUROPEAN JOURNAL | 2016年 / 22卷 / 33期
基金：
以色列科学基金会;
关键词：
enantioselectivity; gas chromatography; ligand design; ring-opening polymerization; zinc; RING-OPENING POLYMERIZATION; BIODEGRADABLE POLYMERS; RACEMIC LACTIDE; CYCLIC ESTERS; INITIATORS; ALUMINUM; STEREOCONTROL; ZIRCONIUM; MAGNESIUM; POLYLACTIDES;
D O I：
10.1002/chem.201601979
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Zinc complexes of {ONNN}-type sequential tetradentate monoanionic ligands reacted with diethylzinc to give the mononuclear ethylzinc complexes. The benzyloxy complexes were formed readily and were found to be highly active as well as living/immortal catalysts for ring-opening polymerization of rac-lactic acid with a clear isospecific inclination. Chiral gas chromatography analysis revealed a mild preference for a given lactide enantiomer by the chiral catalysts.
引用
收藏
页码：11533 / 11536
页数：4
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