1,5-二氮杂二环[4.3.0]-壬-5-烯与全氟烷基炔酸甲酯的Michael加成反应(英文)

Michael-type Addition of 1,5-Diazabicyclo[4.3.0]non-5-ene to Methyl 2-Perfluoroalkynoates

:1,5 二氮杂二环 [4 .3 .0 ] 壬 5 烯 (DBN)与全氟烷基炔酸甲酯发生Michael加成反应 ,生成的中间体发生分子内缩合产生了三环化合物。其结构经元素分析 ,IR ,MS和核磁共振氢谱、碳谱 ,二维核磁共振13C 1Hcosy谱 ,二维核磁共振1H 1Hcosy谱确认。对反应机理也进行了探讨。

Michael-type addition of 1,5-diazabicyclo[4.3.0]non-5-ene(DBN) with methyl 2-perfluoroalkynoates([ST5HZ]2) occurred and subsequent intramolecular condensation of the adduct gave a tricyclic derivative(3). The structure of 3 was confirmed by elemental analysis,IR, MS and 1H NMR, 13 C NMR, 13 C- 1H cosy, 1H- 1H cosy . The reaction mechanism was also proposed.