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.
An expedient approach to pyrrolo[3,2-c]quinolines via regioselective formation of the pyrrole nucleus over indoles
作者:Manjusha V. Karkhelikar、Rajeev R. Jha、B. Sridhar、Pravin R. Likhar、Akhilesh K. Verma
DOI:10.1039/c4cc02466d
日期:——
The regioselective synthesis of pyrrolo[3,2-c]quinolines from protected 2-alkynylanilines by Heck and intramolecular Michael addition has been described.
从受保护的2-炔基苯胺经由 Heck 反应和分子内 Michael 加成合成吡咯并[3,2-c]喹啉的区域选择性合成已被描述。
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.
Convenient Indole Synthesis from 2-Iodoanilines and Terminal Alkynes by the Sequential Sonogashira Reaction and the Cyclization Reaction Promoted by Tetrabutylammonium Fluoride (TBAF)
The sequential Sonogashira reaction and the cyclization reaction of various 2-iodoanilines and terminal alkynes in the presence of a palladium catalyst and tetrabutylammonium fluoride (TBAF) gave the corresponding 2-substituted indoles in good yields.