The first iodine improved 1,3-dipolar cycloaddition: facile and novel synthesis of 2-substituted benzo[f]isoindole-4,9-diones
作者:Huan-Ming Huang、Jian-Rong Gao、Li-Fen Hou、Jian-Hong Jia、Liang Han、Qing Ye、Yu-Jin Li
DOI:10.1016/j.tet.2013.08.029
日期:2013.10
The first novel protocol of the synthesis of 2-substituted benzo[f]isoindole-4,9-dione framework via the one-pot, 1,3-dipolar cycloaddition of quinones, paraformaldehyde and N-substituted amino ester hydrochlorides in the present of iodine at refluxing acetonitrile was reported. All these reactions proceed with good to excellent yields. The promising results obtained 1,3-dipolar cycloaddition will
的合成的第一新颖协议的2-取代的苯并[ ˚F ]通过的醌类,多聚甲醛和一锅煮,1,3-偶极环加成异吲哚-4,9-二酮框架Ñ本的取代的氨基酯盐酸盐碘在回流的乙腈进行了报道。所有这些反应均以良好至极好的收率进行。1,3-偶极环加成反应获得的有希望的结果将在具有重要生物活性的天然产物中具有潜在的应用前景。