New Crown Ether-Based Nano Ionic Liquid ([DB-18-C-6K+][OH−] nIL): A Versatile Nanocatalyst for the Synthesis of Spiro[indoline-3,2′-quinoline] Derivatives via the Cascade Four-Component Reaction of Arylamines, Dialkylacetylenedicarboxylates, Isatins and Dimedone
作者:Kobra Nikoofar、Shiva Khani
DOI:10.1007/s10562-018-2391-7
日期:2018.6
UV–Vis spectroscopy techniques The obtained catalyst has been utilized for the one-pot, four-component synthesis of spiro[indoline-3,2′-quinoline] derivatives from the combination of isatins, amines, dimedone, and dialkylacetylenedicarboxylates. The advantages of this protocol included the use of common and easily-available starting materials, utilizing ambient temperature, non-toxic and inexpensive reagent
以二苯并18-冠-6([DB-18-C-6K+][OH-] nIL)为基础,通过简单的方法合成了一种新型纳米级冠醚基离子液体,并通过傅立叶变换表征红外光谱、核磁共振光谱、高分辨率扫描电子显微镜、能量色散 X 射线光谱、热重/差热分析和紫外-可见光谱技术所获得的催化剂已用于一锅四组分从靛红、胺、二甲酮和二烷基乙炔二羧酸盐的组合合成螺[indoline-3,2'-quinoline]衍生物。该协议的优点包括使用常见且易于获得的起始材料、利用环境温度、无毒且廉价的试剂使用、产品产量高、
Heterogeneous bimetallic ZnFe2O4 nanopowder catalysed facile four component reaction for the synthesis of spiro[indoline-3,2′-quinoline] derivatives from isatins in water medium
作者:Kamalesh Debnath、Animesh Pramanik
DOI:10.1016/j.tetlet.2015.02.030
日期:2015.3
The bimetallic ZnFe2O4 nanopowder, a dual Lewis acid base combined catalyst is found to efficiently catalyse a four component reaction for the synthesis of functionalized tetrahydrospiro[indoline-3,2'-quinoline] derivatives from arylamines, dialkyl acetylenedicarboxylates, isatin derivatives and cyclohexane-1,3-diones in water medium at room temperature. Reduced reaction time, operational simplicity, elimination of hazardous solvent and more importantly, easy recoverability and reusability of the nanopowder make the present methodology economical, green and sustainable. (C) 2015 Elsevier Ltd. All rights reserved.
Synthesis of Spiro[indoline-3,2′-quinoline] Derivatives through a Four-Component Reaction
作者:Jing Sun、Yan Sun、Hong Gao、Chao-Guo Yan
DOI:10.1002/ejoc.201101737
日期:2012.4
An efficient synthetic procedure for the synthesis of functionalized tetrahydrospiro[indoline-3,2′-quinoline] derivatives was successfully developed and involves the four-componentreaction of arylamines, dimethyl acetylenedicarboxylate, isatins, and a cyclohexane-1,3-dione in acetic acid. The advantages of this reaction include the use of common starting materials and mild reaction conditions and