作者:Zhu, Ling-Yun、Sun, Jing、Liu, Dan、Yan, Chao-Guo
DOI:10.1016/j.tet.2024.134026
日期:——
promoted cycloaddition reaction of 2-hydroxy-2-(indol-3-yl)-indane-1,3-diones with the generated -enamino esters, which were generated from the reaction of arylamines and dialkyl but-2-ynedioates, showed very interesting molecular diversity. In the presence of 30 % mmol iodine, the reaction in acetonitrile at 80 °C resulted in the novel spiro [indene-2,1′-pyrido [4,3-]indole] derivatives in good yields
我促进了2-羟基-2-(吲哚-3-基)-茚满-1,3-二酮与生成的烯氨基酯的环加成反应,烯氨基酯是由芳基胺和丁-2-炔二酸二烷基酯反应生成的,表明非常有趣的分子多样性。在 30% mmol 碘存在下,在 80°C 的乙腈中进行反应,以良好的收率生成新型螺[茚-2,1'-吡啶并[4,3-]吲哚]衍生物。另一方面,在 80% mmol 碘存在下,在乙腈中于 60°C 反应,得到扩环苯并[5,6]吡咯并[3',2':3,4]环庚[1,2 -]吲哚衍生物,产率中等至良好。此外,类似的碘促进的2-(吲哚-2-基)二芳基甲醇和烯氨基酯的反应以令人满意的收率得到了独特的1,1,2-三苯基-2,9-二氢吡啶并[3,4-]吲哚。合理地提出了一种合理的多米诺环化机制来形成各种多环化合物。