Synthesis, Characterization, and Catalytic Application of Aluminum Anilido-Oxazolinate Complexes

被引:30
作者
Chen, Chi-Tien [1 ]
Weng, Han-Jade [1 ]
Chen, Ming-Tsz [1 ]
Huang, Chi-An [1 ]
Peng, Kuo-Fu [1 ]
机构
[1] Natl Chung Hsing Univ, Dept Chem, Taichung 402, Taiwan
关键词
Aluminum; Anilido-oxazolinate ligands; Ring-opening polymerization; Biodegradable polymers; RING-OPENING POLYMERIZATION; BIS-PHENOLATE LIGANDS; EPSILON-CAPROLACTONE; METAL-COMPLEXES; CYCLIC ESTERS; ZINC-COMPLEXES; EFFICIENT CATALYSTS; CYCLOHEXENE OXIDE; COPOLYMERIZATION; LACTIDE;
D O I
10.1002/ejic.200900064
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A family of aluminum complexes containing anilido-oxazolinate ligands are described. Reactions of five anilido-oxazolinate ligand precursors, HNPh(TriMe)Oxa, HNPh(DiiPr)Oxa, HNPh(OMe)Oxa, HNPh(SMe)Oxa, or HNPhOxa, with 1 molar equiv. of AlMe(3) in toluene give the aluminum dimethyl complexes (NArOxa)AlMe(2) [Ar = 2,4,6-trimethylphenyl, (NPh(DiiPr)Oxa)AlMe(2) (1); Ar = 2,6-diisopropylphenyl, (NPh(DiiPr)Oxa)AlMe(2) (2); Ar = 2-methoxyphenyl, (NPh(OMe)Oxa)AlMe(2) (3); Ar = 2-methylthiophenyl, (NPh(SMe)Oxa)AlMe(2) (4); Ar = phenyl, (NPhOxa)AlMe(2) (5), respectively]. The molecular structures are reported for compounds 1-4. Their catalytic activities toward the ring-opening polymerization reactions of L-lactide or epsilon-caprolactone in the presence of BnOH are also under investigation. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
引用
收藏
页码:2129 / 2135
页数:7
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