Magnesium and Zinc Complexes Supported by N,O-Bidentate Pyridyl Functionalized Alkoxy Ligands: Synthesis and Immortal ROP of epsilon-CL and L-LA
文献类型：期刊论文
| 作者 | Wang Y ; Zhao W ; Liu DT ; Li SH ; Liu XL ; Cui DM ; Chen XS |
| 刊名 | organometallics
 |
| 出版日期 | 2012 |
| 卷号 | 31期号:11页码:4182-4190 |
| 关键词 | RING-OPENING POLYMERIZATION N O MULTIDENTATE LIGANDS AMINO CALCIUM CATALYST SINGLE-SITE CATALYSTS L-LACTIDE RAC-LACTIDE CYCLIC ESTERS METAL-COMPLEXES ALUMINUM ISOPROPOXIDE EFFICIENT INITIATORS |
| ISSN号 | 0276-7333 |
| 通讯作者 | cui dm |
| 中文摘要 | the n,o-bidentate pyridyl functionalized alkoxy ligands 2-(6-methyl-2-pyridinyl)-1,1-dimethyl-1-ethanol (l-1-h) and 2-(6-methyl-2-pyridinyl)-1,1-diphenyl-1-ethanol (l-2-h) have been prepared by treatment of acetone and benzophenone with monolithiated 2,6-lutidine. deprotonolysis of the ligands l-1-h and l-2-h with 1 equiv of (mgbu2)-bu-n and znet2 in toluene by releasing butane and ethane, respectively, gave the corresponding dimeric metal-monoalkyl complexes [(lmgbu)-mg-1-bu-n](2) (1), [(lmgbu)-mg-2-bu-n](2) (2), [(lznet)-zn-1](2) (3), and [(lznet)-zn-2](2) (4). complexes 1-4 were characterized by h-1 and c-13 nmr spectroscopy analysis, and the molecular structures of 1, 3, and 4 were further confirmed by x-ray diffraction analysis. the investigation of the catalytic behavior of these complexes toward epsilon-caprolactone (epsilon-cl) and l-lactide (l-la) polymerizations showed that the mg-based complexes gave higher activity than those attached to zinc metal, probably owing to the greater ionic character of the magnesium metal. remarkably, the magnesium complex 2 exhibited a striking "immortal" nature in the presence of primary alcohols where up to 500 pcl chains grew from each mg active center when benzyl alcohol was employed, while, in particular, in the presence of triethanolamine, complex 2 also displayed an immortal mode for the polymerization of l-la. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000304978700014 |
| 公开日期 | 2013-05-20 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/48101]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang Y,Zhao W,Liu DT,et al. Magnesium and Zinc Complexes Supported by N,O-Bidentate Pyridyl Functionalized Alkoxy Ligands: Synthesis and Immortal ROP of epsilon-CL and L-LA[J]. organometallics,2012,31(11):4182-4190. |
| APA | Wang Y.,Zhao W.,Liu DT.,Li SH.,Liu XL.,...&Chen XS.(2012).Magnesium and Zinc Complexes Supported by N,O-Bidentate Pyridyl Functionalized Alkoxy Ligands: Synthesis and Immortal ROP of epsilon-CL and L-LA.organometallics,31(11),4182-4190. |
| MLA | Wang Y,et al."Magnesium and Zinc Complexes Supported by N,O-Bidentate Pyridyl Functionalized Alkoxy Ligands: Synthesis and Immortal ROP of epsilon-CL and L-LA".organometallics 31.11(2012):4182-4190. |
入库方式： OAI收割
来源：长春应用化学研究所
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