National Changhua University of Education Institutional Repository : Item 987654321/14785
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題名: Aluminum Alkyl Complexes Containing Bidentate, Mono- or di-anionic Pyrrolyl Ligands: Intramolecular Elimination of Methane and 1-hexene Polymerization
作者: Zhou, Chong-Chin;Hung, Chen-Hsiung;Huang, Jui-Hsien;Lee, Ting-Yu
貢獻者: 化學系
關鍵詞: Pyrrolyl;Aluminum;Intramolecular eliminatin;Hexene polymerization
日期: 2006-12
上傳時間: 2012-12-10T01:39:46Z
出版者: 中國化學學會
摘要: A series of aluminum alkyl complexes were synthesized and their catalytic polymerization reactivity toward 1-hexene was studied. Aluminum complexes, [C4H3N (CH2NHMe)-2] AlR2 (1a, R = Me; 1b, R = Et), containing substituted pyrrolyl ligand can be prepared by reacting AlR3 with one equiv of C4H3NH (CH2NHMe)-2 in diethyl ether at room temperature. Dimeric aluminum complexes, {[C4H3N-(CH2NMe)-2] AlR }2 (2a, R = Me; 2b, R = Et), can be obtained via metathesis by heating AlR3 and with one equiv of [C4H3NH (CH2NHMe)-2] in toluene for 24 h or via intramolecular methane elimination by heating 1 and 2 at 90�C in toluene. Complexes 1a, 1b, 2a, and 2b have been characterized by NMR spectroscopy and by X-ray crystallography. Complexes 1a and 2a have shown moderate reactivity for 1-hexene polymerization in the presence of MAO.
關聯: Journal of the Chinese Chemical Society, 53(6): 1297-1302
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