Cerium oxide nanoparticle-catalyzed three-component protocol for the synthesis of highly substituted novel quinoxalin-2-amine derivatives and 3,4-dihydroquinoxalin-2-amines in water
作者:Naushad Edayadulla、Yong Rok Lee
DOI:10.1039/c4ra00717d
日期:——
The syntheses of novel quinoxalin-2-amine derivatives were conducted in water using CeO2 nanoparticle catalyzed three-component reactions of 1,2-diamines with aldehydes and isocyanides. A variety of 3,4-dihydroquinoxalin-2-amine derivatives were also synthesized by reactions between 1,2-diamines, ketones and isocyanides. This new method offers an environmentally benign and effective approach for the
A novel catalytic one-pot three-component reaction of aldehydes, o-phenylenediamine derivatives and isocyanides for synthesis of 3,4-dihydroquinoxalin-2-amine derivatives in the presence of zirconium tetrachloride
作者:Seyed Ali Jehbez、Hamid Reza Safaei
DOI:10.1007/s13738-018-1301-7
日期:2018.5
synthesis of biologically interesting 3,4-dihydroquinoxalin-2-amine derivatives through a three-component condensation reaction of o-phenylenediamines, carbonyl compounds and isocyanides in ethanol at room temperature is described. In this work, unlike the other methods, aldehydes reacted as well as ketones in the presence of 10 mol% of zirconium tetrachloride as catalyst to afford good to excellent yields
摘要描述了一种简单有效的一锅法,用于在室温下通过邻苯二胺,羰基化合物和异氰化物在乙醇中的三组分缩合反应合成生物学上令人感兴趣的3,4-二氢喹喔啉-2-胺衍生物。在这项工作中,与其他方法不同,在10摩尔%的四氯化锆作为催化剂的存在下,醛类和酮类也发生了反应,从而提供了良好的产品收率。该方法由于其对环境有益的特性,高收率,易于处理以及对醛和酮的可靠性而具有重要的价值。通过IR,1 H NMR,13 C NMR和元素分析系统地表征了新合成的化合物。 图形概要醛,邻苯二胺衍生物和异氰酸酯的新型催化一锅三组分反应,用于在四氯化锆存在下合成3,4-二氢喹喔啉-2-胺衍生物 。
EDTA-catalyzed synthesis of 3,4-dihydroquinoxalin-2-amine derivatives by a three-component coupling of one-pot condensation reactions in an aqueous medium
作者:Srinivasa Rao Kolla、Yong Rok Lee
DOI:10.1016/j.tet.2010.09.050
日期:2010.11
This paper describes a simple and efficient one-pot synthetic approach for the preparation of biologically interesting 3,4-dihydroquinoxalin-2-amine derivatives using EDTA-catalyzed three-component reactions of o-phenylenediamines, carbonyl compounds, and isocyanides in an aqueous medium. This method is of great value because of its environmentally benign character, high yields, and ease of handling. (C) 2010 Elsevier Ltd. All rights reserved.
Rapid and Efficient One-Pot Synthesis of 3,4-Dihydroquinoxalin-2-Amine Derivatives Catalyzed by Co<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> Core-Shell Nanoparticles Under Ultrasound Irradiation
作者:Mohammad Ali Ghasemzadeh、Boshra Mirhosseini-Eshkevari、Mohammad Hossein Abdollahi-Basir
DOI:10.2174/1386207319666160524141831
日期:2016.7.12
three-component reactions of ophenylenediamines (OPDA), diverse ketones and various isocyanides in ethanol underultrasoundirradiation. The combinatorial synthesis was attained for this procedure with applying ultrasoundirradiation while making use of ethanol as green ambient. The present approach offers several advantages such as high yields, environmentally benign, simple work-up, excellent yield of products