本文主要研究内容
作者王亚兰,党燕,潘荟芬,葛宇,姜志垒,夏升旺,李亚红（2019）在《Aluminum and Titanium Complexes Containing Pyrrole-imine Ligands: Syntheses, Structures, and Ring-opening Polymerization of ε-Caprolactone》一文中研究指出：Syntheses and properties of aluminum and titanium complexes incorporating the pyrrole-imine ligands, N-（（1H-pyrrol-2-yl）methyl）-1-（1H-pyrrol-2-yl）methanimine（H2L1） and 2-cyano-1H-pyrrole（HL2）, have been investigated. Addition of one equiv of H2L1 to AlMe3 and AlEt3, respectively results in the formation of dinuclear complexes [Al2（L1）2 Me2]（1） and [Al2（L1）2 Et2]（2）. Treatment of Ti（NMe2）4 with one equiv of HL2 and two equiv of iPrOH or three equiv of BnOH results in the production of complexes [Ti（HL3）2（OiPr）2]（3） and [Ti2（HL3）2（OBn）6]（4）（H2L3 = N,N-dimethyl-1H-pyrrole-2-carboximid-amide）. HL3 anion is an intermediate which is in situ formed from the reaction of HL2 and Ti（NMe2）4. The structures of 1～4 were characterized by single crystal X-ray diffraction. The catalytic properties of 1～4 toward ring-opening polymerization（ROP） of ε-caprolactone were studied. All of the compounds could effectively initiate the polymerization reactions with good activities.
Abstract
Syntheses and properties of aluminum and titanium complexes incorporating the pyrrole-imine ligands, N-（（1H-pyrrol-2-yl）methyl）-1-（1H-pyrrol-2-yl）methanimine（H2L1） and 2-cyano-1H-pyrrole（HL2）, have been investigated. Addition of one equiv of H2L1 to AlMe3 and AlEt3, respectively results in the formation of dinuclear complexes [Al2（L1）2 Me2]（1） and [Al2（L1）2 Et2]（2）. Treatment of Ti（NMe2）4 with one equiv of HL2 and two equiv of iPrOH or three equiv of BnOH results in the production of complexes [Ti（HL3）2（OiPr）2]（3） and [Ti2（HL3）2（OBn）6]（4）（H2L3 = N,N-dimethyl-1H-pyrrole-2-carboximid-amide）. HL3 anion is an intermediate which is in situ formed from the reaction of HL2 and Ti（NMe2）4. The structures of 1～4 were characterized by single crystal X-ray diffraction. The catalytic properties of 1～4 toward ring-opening polymerization（ROP） of ε-caprolactone were studied. All of the compounds could effectively initiate the polymerization reactions with good activities.
论文参考文献
[1].Lanthanum heterocyclic Schiff-base complex initiated ring-opening polymerization of ε-caprolactone[J]. Wen Lin Wei Lin Sun Zhi Quan Shen Department of Polymer Science and Engineering,Zhejiang University,Hangzhou 310027,China. Chinese Chemical Letters.2007(09)[2].Synthesis and characterization of N-aryloxo-functionalized β-ketoiminate rare-earth complexes and their catalytic activity for the polymerization of ε-caprolactone[J]. HAN XiangZong,WU LiangLiang,YAO YingMing,ZHANG Yong & SHEN Qi Key Laboratory of Organic Synthesis of Jiangsu Province,College of Chemistry,Chemical Engineering and Materials Science,Dushu Lake Campus,Soochow University,Suzhou 215123,China. Chinese Science Bulletin.2009(20)[3].Facile Synthesis of Functional Poly (ε-caprolactone) via Janus Polymerization[J]. Huan Qiu,Zhe-Ning Yang,Jun Ling. Chinese Journal of Polymer Science.2019(09)[4].In situ generated,tetrahydrosalen stabilized yttrium borohydride complex:Efficient initiator for the ring-opening polymerization of ε-caprolactone[J]. Jing Huang,Jian Fang Yu,Guang Ming Wu,Wei Lin Sun~*,Zhi Quan Shen Key Laboratory of Macromolecule Synthesis and Functionalization,Ministry of Education,Department of Polymer Science and Engineering,Zhejiang University,Hangzhou 310027,China. Chinese Chemical Letters.2009(11)[5].Polymerization of Butyl Methacrylate Catalyzed by Salicylaldehyde-Imine Zirconium/Al（i-Bu）3System[J]. 程正载,TANG Ran,谢聪,WANG Yun,DING Ling,WANG Handing,YAN Xiaochao,ZHU Sanyong,Gauthier Mario. Journal of Wuhan University of Technology(Materials Science).2018(02)[6].Enolic Schiff Base Zinc Amide Complexes: Highly Active Catalysts for Ring-Opening Polymerization of Lactide and ε-Caprolactone[J]. Chen-Yang Hu,Ran-Long Duan,Jing-Wei Yang,Shu-Jun Dong,Zhi-Qiang Sun,Xuan Pang,Xian-Hong Wang,Xue-Si Chen. Chinese Journal of Polymer Science.2018(10)[7].Electrochemical polymerization of 2,6-pyridinediamine and characterization of the resulting polymer[J]. Shi Ping Luo~a,Qing Xin Liu~b,Zhong Liu~a,Ai Juan Xie~a,Yong Kong~(a,*),Xin Dai~a a Institute of Petrochemical Technology,Changzhou University,Changzhou 213164,China b Science and Technology Department,Changzhou College of Information Technology,Changzhou 213164,China. Chinese Chemical Letters.2012(11)[8].Room temperature polymerization of alkyl isocyanates catalyzed by rare earth Schiff base complexes[J]. YANG XiongFa,NI XuFeng & SHEN ZhiQuan Key Laboratory of Macromolecular Synthesis and Functionalization,Ministry of Education,Institute of Polymer Science,Zhejiang University,Hangzhou 310027,China. Science in China(Series B:Chemistry).2009(11)[9].Studies on the Structures and Spectra of Benzothiophene Oligomers[J]. 解明华,苏宁海,吴师. 结构化学.2008(04)[10].A Novel RAFT Polymerization under UV Radiation at Ambient Temperature[J]. Nianfa Yang, Lican Lu, Yuanli Cai (College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China). 复旦学报(自然科学版).2005(05)
论文详细介绍
论文作者分别是来自Chinese Journal of Structural Chemistry的王亚兰,党燕,潘荟芬,葛宇,姜志垒,夏升旺,李亚红，发表于刊物Chinese Journal of Structural Chemistry2019年10期论文，是一篇关于,Chinese Journal of Structural Chemistry2019年10期论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自Chinese Journal of Structural Chemistry2019年10期论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：Chinese Journal of Structural Chemistry2019年10期论文;
王亚兰：Aluminum and Titanium Complexes Containing Pyrrole-imine Ligands: Syntheses, Structures, and Ring-opening Polymerization of ε-Caprolactone论文
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