Cu(<scp>i</scp>) catalysis for selective condensation/bicycloaromatization of two different arylalkynes: direct and general construction of functionalized C–N axial biaryl compounds
enantioselectivity verifies its potential for the simplest asymmetric synthesis of atropoisomeric biaryls. Western blotting demonstrated that the newly developed compounds are promising targets in biology and pharmaceuticals. This unique reaction can construct structurally diverse C–N axial biarylcompounds that have never been reported by other methods, and might be extended to various applications in materials
Photoredox Decarboxylative Alkylation/(2+2+1) Cycloaddition of 1,7‐Enynes: A Cascade Approach Towards Polycyclic Heterocycles Using
<i>N</i>
‐(Acyloxy)phthalimides as Radical Source
作者:José Tiago Menezes Correia、Gustavo Piva da Silva、Elias André、Márcio Weber Paixão
DOI:10.1002/adsc.201900657
日期:2019.12.17
No Abstract
没有摘要
One-Pot/Four-Step/Palladium-Catalyzed Synthesis of Indole Derivatives: The Combination of Heterogeneous and Homogeneous Systems
One-pot, four-step syntheses of indoles using both solid-supported heterogeneous and homogeneous palladium catalysts and reagents were carried out. Such a combination of these two-phase catalysts and reagents causes a dramatic increase in yield, and it is a simple process. The presented methodology is effective for four-step reactions to provide various functionalized indoles.
One-Pot Synthesis of <i>N</i>-Imidoyl-(1<i>H</i>)-indoles via Palladium-Catalyzed Oxidative Insertion Domino Reaction with Isocyanide and Arylboronic Acid
Efficient one-pot synthesis of N-imidoyl-(1H)-indoles has been described, which is achieved by the palladium-catalyzed oxidative insertion of 2-(phenylethynyl)aniline, arylboronic acid, and isonitrile. This method provides a new way to synthesize N-imidoyl-(1H)-indoles, which has a wide substrate scope, good functional group tolerance, and mild reaction condition.
Copper-Catalyzed Aerobic Oxidative Cyclization of 2-Alkynylanilines with Nitrosoarenes: Synthesis of Organic Solid Mechanoluminescence Compounds of 4-Oxo-4<i>H</i>-cinnolin-2-ium-1-ide
作者:Xiaolan Fang、Ji Cao、Weijie Ding、Huile Jin、Xiaochun Yu、Shun Wang
DOI:10.1021/acs.orglett.0c04186
日期:2021.2.19
An efficient Cu(I)/DMAP/air system for the one-pot synthesis of 4-oxo-4H-cinnolin-2-ium-1-ides, which are often difficult to prepare by traditional routes from substituted 2-alkynylanilines and nitrosoarenes, was developed. These 4-oxo-4H-cinnolin-2-ium-1-ides have practical applications as mechanoluminescent materials. Preliminary mechanistic experiments were performed, and a plausible mechanism for
一种高效的Cu(I)/ DMAP /空气系统,用于一锅合成4-oxo-4 H -cinnolin-2-ium-1-ides,这通常很难通过传统路线由取代的2-炔基苯胺和开发了亚硝基芳烃。这些4-氧代-4 H-肉桂啉-2-基-1-化物具有实际的机械发光材料应用。进行了初步的机械实验,并提出了这种串联过程的合理机制。使用廉价的铜催化剂和分子氧作为氧源和氧化剂,使其具有潜在的合成应用前景,成为一种有吸引力的绿色方案。