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题名: Magnesium and aluminum complexes bearing bis(5,6,7-trihydro quinolyl)-fused benzodiazepines for epsilon-caprolactone polymerization
作者: Rajendran, Natesan Mannangatti1, 2; Xi, Yanxia1, 2; Zhang, Wenjuan1, 2, 3; Braunstein, Pierre4; Liang, Tongling1, 2; Sun, Wen-Hua1, 2
刊名: INORGANIC CHEMISTRY FRONTIERS
发表日期: 2016
卷: 3, 期:10, 页:1317-1325
收录类别: SCI
英文摘要: Substituted benzodiazepines of the general formula 2,2'-di(R)-5,6,6',7',8,13-hexahydro-5'H-spiro-benzo [2,3][1,4] diazepino[6,5-h] quinoline-7,8'-quinoline [R = H (L1), Me (L2), and Cl (L3)] were synthesized by the condensation reactions between 1,2-phenylenediamine and (2R)-5,6,7-trihydroquin-8-ones. Treatment of these compounds with two equivalents of C2H5MgBr or AlMe3 afforded the corresponding yellow magnesium complexes [R = H (C1) and Me (C2)], and the red aluminum complexes [R = H (C3), Me (C4) and Cl (C5)], respectively. The molecular structures of L1 and L3 and of complexes C1, C3 and C4 were determined by the single crystal X-ray diffraction study. L1 and L3 contain two 2R-substituted-5,6,7-trihydroquin-8-one groups fused with benzodiazepine through one-carbon or two-carbon atoms, respectively. The magnesium complex C1 displays a dinuclear bromomagnesium bridged by the ligand as the "pas de deux" arrangement, while aluminum complexes (C3 and C4) show bis(dimethylaluminum) benzodiazepines. In the presence of BnOH, the magnesium complexes showed efficient activities toward the ring-opening polymerization (ROP) of epsilon-caprolactone (epsilon-CL) with TOF up to 8100 h(-1) at 60 degrees C; while the aluminum complexes also initiated high conversion of epsilon-CL by ROP.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35091
Appears in Collections:工程塑料实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
3.Beijing Inst Fash Technol, Sch Mat Sci & Engn, Beijing 100029, Peoples R China
4.Univ Strasbourg, Lab Chim Coordinat, Inst Chim, CNRS,UMR 7177, 4 Rue Blaise Pascal CS 90032, F-67081 Strasbourg, France
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