Reactivity of asymmetric benzo-condensed diazines with nitrilimine dipoles in the 1,3-dipolar cycloaddition reactions
作者:Antonino Lauria、Annalisa Guarcello、Gabriella Macaluso、Gaetano Dattolo、Anna Maria Almerico
DOI:10.1016/j.tetlet.2009.10.062
日期:2009.12
The reactivity of asymmetric benzo-condensed diazines in the 1,3-dipolar cycloaddition reactions with nitrilimines was investigated. The results demonstrated that, at variance with the symmetric quinoxaline, a certain grade of diastereoselectivity emerged. Moreover in the case of the 5-methylquinoxaline and quinazoline a mono-cycloadduct was obtained.
研究了不对称苯并缩合的二嗪与亚硝胺在1,3-偶极环加成反应中的反应性。结果表明,与对称的喹喔啉不同,出现了一定等级的非对映选择性。此外,在5-甲基喹喔啉和喹唑啉的情况下,获得单环加合物。