Formation of 4H-Azepine by the Electrophilic Reaction of a 2-Methoxyazepinium Ion and Analysis of the Sigmatropic Isomerization
作者:Christopher E. J. Cordonier、Kyosuke Satake、Hideki Okamoto、Masaru Kimura
DOI:10.1002/ejoc.200600257
日期:2006.9
4-aryl-4H-azepine were formed by the novel, electrophilic, πLUMO-controlled reaction of the 2-methoxyazepinium ion, generated in situ by the reaction of TiCl4 with 2,7-dialkoxy-2H-azepine and an aryl compound, for which the kinetic parameters of the sigmatropic hydrogen rearrangement of the 4H-azepine was measured. The substitution and hydrogen shift of the azepinium ion were analyzed with DFT studies. (© Wiley-VCH
2-芳基-2H-、3-芳基-3H-和4-芳基-4H-氮杂是通过2-甲氧基氮杂鎓离子的新型亲电、πLUMO控制反应形成的,由TiCl4与2,7-二烷氧基-2H-氮杂和芳基化合物,测量了4H-氮杂的σ-氢重排的动力学参数。用 DFT 研究分析氮杂鎓离子的取代和氢位移。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)