CuI-catalyzed one-pot synthesis of benzothiazolones from 2-iodoanilines-derived carbamates and sodium sulfide
摘要:
A copper-catalyzed procedure was developed for assembling benzothiazolones from ethyl 2-iodophenylcarbamates and sodium sulfide. A number of functional groups, such as methoxy, acyl, amide, carboxylate, trifluoromethyl, fluoro, and chloro, were tolerated under these conditions, providing benzothiazolones in good yields. (C) 2012 Elsevier Ltd. All rights reserved.
Electronically modified amine substituted alkynols for regio-selective synthesis of dihydrofuran derivatives
作者:Vijay V、Manjusha V. Karkhelikar、B. Sridhar、Nedaossadat Mirzadeh、Suresh Bhargava、Pravin R. Likhar
DOI:10.1039/c5ob02033f
日期:——
efficient and simple approach has been developed for the regio-selective synthesis of iodo-substituted dihydrofurans from amine substituted alkynols. The resulting iodo-substituted dihydrofurans have been further diversified by C–C couplings and C–N coupling reactions to afford a diverse range of substituted dihydrofuranderivatives.
A new synthetic approach to pyrrolo[3,2- b ]indoles via regioselective formation of pyrrole and intramolecular C N coupling
作者:Manjusha V. Karkhelikar、Vijay V. Rao、Sundar S. Shinde、Pravin R. Likhar
DOI:10.1016/j.tetlet.2016.09.044
日期:2016.10
A new synthetic approach for the synthesis of pyrrolo[3,2-b]indoles has been developed in two steps. First step involves electrophilic iodocyclization of protected 2-alkynylanilines to regioselective formation of pyrroles followed by copper catalyzed intramolecular CN coupling.
分两个步骤开发了一种合成吡咯并[3,2- b ]吲哚的新合成方法。第一步涉及被保护的2-炔基苯胺的亲电碘环化,以形成吡咯的区域选择性,然后进行铜催化的分子内C N偶联。