First Example of Cu(OTf)<sub>2</sub>-catalyzed Synthesis of Quinoxalines from α-Diazoketones and Aryl 1,2-Diamines
作者:J. S. Yadav、B. V. Subba Reddy、Y. Gopala Rao、A. V. Narsaiah
DOI:10.1246/cl.2008.348
日期:2008.3.5
α-Diazoketones undergo smooth coupling with aryl 1,2-diamines in the presence of 10 mol % of copper(II) triflate to provide the corresponding 2-alkyl- or 2-aryl-quinoxalines in excellent yields wit...
α-重氮酮在 10 mol% 三氟甲磺酸铜 (II) 存在下与芳基 1,2-二胺进行平滑偶联,以优异的收率提供相应的 2-烷基-或 2-芳基-喹喔啉...
RECYCLABLE ACIDIC BR0NSTED IONIC LIQUID CATALYZED SYNTHESIS OF QUINOXALINE
作者:D TEJESWARARAO
DOI:10.4067/s0717-97072016000100018
日期:——
The acidic ionic liquid, 1-(4-sulfonic acid) butyl-3-methylimidazolium hydrogen sulfate [MimC 4 SO 4 H]HSO 4 catalyzed two-component condensation reaction of phenacyl bromide and o -phenylenediamine to afford corresponding quinoxaline derivatives. The inexpensive and non-toxic ionic liquids can be reused several times without any perceptible loss of their activities.
酸性离子液体1-(4-磺酸)丁基-3-甲基咪唑硫酸氢盐[MimC 4 SO 4 H] HSO 4催化苯甲酰溴和邻苯二胺的两组分缩合反应,得到相应的喹喔啉衍生物。廉价且无毒的离子液体可以重复使用数次,而不会损失任何活性。