Cu-catalyzed transannulation reaction of pyridotriazoles with terminal alkynes under aerobic conditions: efficient synthesis of indolizines
作者:V. Helan、A. V. Gulevich、V. Gevorgyan
DOI:10.1039/c4sc03358b
日期:——
Cu(I)-catalyzed denitrogenative transannulation reaction of pyridotriazoles with terminalalkynes en route to indolizines was developed. Compared to the previously reported Rh-catalyzed transannulation reaction, this Cu-catalyzed method features aerobicconditions and a much broader scope of pyridotriazoles and alkynes.
开发了一种 Cu( I ) 催化的吡啶并三唑与末端炔烃脱氮转环反应生成中氮茚的过程。与之前报道的Rh催化转环反应相比,这种Cu催化方法具有需氧条件以及更广泛的吡啶并三唑和炔烃范围。
Indolizine Synthesis via Oxidative Cross-Coupling/Cyclization of Alkenes and 2-(Pyridin-2-yl)acetate Derivatives
A novel copper/I2-mediated oxidative cross-coupling/cyclization of 2-(pyridin-2-yl)acetate derivatives and simple olefins is developed, which provides a straightforward and efficient access to structural diversely indolizines. A series of 1,3-di- and 1,2,3-trisubstituted indolizines are easily synthesized in modest to excellent yields.
开发了新颖的铜/ I 2介导的2-(吡啶-2-基)乙酸酯衍生物和简单烯烃的氧化交叉偶联/环化,其提供了直接且有效地获得结构多样的吲哚嗪的途径。一系列1,3-二-和1,2,3-三取代的吲哚嗪很容易合成,收率适中至优异。
Synthesis of substituted indolizines via radical oxidative decarboxylative annulation of 2-(pyridin-2-yl)acetate derivatives with α,β-unsaturated carboxylic acids
作者:Jian Gu、Chun Cai
DOI:10.1039/c6ob01902a
日期:——
A copper mediated radical oxidative annulation of 2-(pyridin-2-yl)acetate derivatives with α,β-unsaturated carboxylic acids is developed. This study offers a new and expedient strategy for the synthesis of useful indolizines in moderate to good yields and exhibits a broad substrate scope and good functional group tolerance.