Synthesis and spectroscopic studies of some new substituted 6<i>H</i>-indolo[2,3-<i>b</i>]quinoxalines
作者:George Y. Sarkis、Hashim T. Al-Badri
DOI:10.1002/jhet.5570170441
日期:1980.6
Six substituted 6H-indolo[2,3-b]quinoxalines were synthesized by the interaction o-phenyl-enediamine with substituted isatins. The uv, ir and nmr spectral data for the compounds synthesized are presented and discussed.
通过邻苯基苯二胺与取代的靛红的相互作用合成了6个取代的6 H-吲哚并[2,3- b ]喹喔啉。介绍并讨论了合成化合物的uv,ir和nmr光谱数据。
Features of the reaction of isatin derivatives with ortho-phenylenediamine
作者:A. V. Bogdanov、V. F. Mironov
DOI:10.1134/s107036321510031x
日期:2015.10
ways to give the reaction products with different structure [5–7]. Thus, in an acidic medium only indolo[2,3-b]quinoxaline formed; 3-(2'-aminophenyl)quinoxalin-2(1H)-one was isolated in 80% yield when using an aqueous alkaline medium. In the case of hexamethylphosporamide the formation of 1,3-dihydrospiro[benzimidazol-2(3H),3'-indolin]-2'one was observed, whereas reaction in THF or benzene afforded 3-
<i>β</i>-cyclodextrin mediated synthesis of indole derivatives: reactions of isatins with 2-amino(or 2-thiole)anilines by supramolecular catalysis in water
作者:Km Neha Shivhare、I. R. Siddiqui
DOI:10.1080/10610278.2018.1529315
日期:2019.1.2
ABSTRACT An elegant, mild, and straightforward strategy for the synthesis of indole derivatives have been accomplished by the biomimetic catalysis for the first time in waterunderneutralconditions. This supramolecularcatalyst oriented methodology provides a sustainable and green protocol for the synthesis of 6H-indolo[2,3-b]quinoxalines and 3H-spiro[benzo[d]thiazole-2,3’-indolin]-2’-one by the