Application of Ynamides in the Synthesis of 2-Amidoindoles
摘要:
A Pd-catalyzed, one-pot, two-step synthesis of 2-amidoindoles from ynamides and o-lodoanilines Is reported. A key highlight of this sequence is that after the Sonogashira reaction, intramolecular cyclization to the indole occurs spontaneously without activation of the alkyne.
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。
Synthesis of 2-Quinolones via Palladium-Catalyzed Carbonylative Annulation of Internal Alkynes by <i>N</i>-Substituted <i>o</i>-Iodoanilines
作者:Dmitry V. Kadnikov、Richard C. Larock
DOI:10.1021/jo049149+
日期:2004.10.1
The palladium-catalyzed annulation of internal alkynes by N-substituted o-iodoanilines under 1 atm of carbonmonoxide results in the formation of 3,4-disubstituted 2-quinolones. The nature of the substituent on the nitrogen is crucial to obtaining high yields of 2-quinolones. The best results are obtained using alkoxycarbonyl, p-tolylsulfonyl, and trifluoroacetyl substituents. The nitrogen substituent
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.