An efficient one‐pot four‐component protocol for the synthesis of imidazo[1,2‐a]pyridines was developed by condensing ethane‐1,2‐diamine (2), 1,1‐bis(methylthio)‐2‐nitroethene (1), aldehydes 3, and activated methylene compounds in EtOH under reflux conditions (Tables 1–3). The features of this procedure are operational simplicity, good yields of products, in situ preparation of heterocyclic ketene
Organic Electrosynthesis as a New Facile and Green Method for One‐pot Synthesis of Nanosized Particles of Octahydro‐imidazo[1,2‐
<scp>
<i>a</i>
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]quinolin‐6‐one Derivatives
<i>via</i>
a Multicomponent Reaction
作者:Rana Sayyar、Somayeh Makarem、Behrooz Mirza
DOI:10.1002/jhet.3562
日期:2019.6
Organic electrosynthesis as a newfacile and green method was applied for one‐pot synthesis of octahydro‐imidazo[1,2‐a]quinolin‐6‐one derivatives, via a three component condensation of a dimedone, an aldehyde and 2‐(nitromethylene)imidazolidine in propanol in an undivided cell in the presence of sodium bromide as an electrolyte at room temperature. In this study, the anion of dimedone that was produced
有机电合成是一种新的简便而绿色的方法,它通过二甲酮,醛和2-(硝基亚甲基)的三组分缩合反应,一锅合成八氢咪唑并[1,2 - a ]喹啉-6-衍生物。在室温下,在存在溴化钠作为电解质的不分隔电池中,丙醇中的咪唑烷)在这项研究中,在阴极上产生的二甲酮阴离子通过Knoevenagel反应与芳族醛反应,然后与2-(硝基亚甲基)咪唑烷缩合产物,从而高效地形成了八氢咪唑[1,2-含50–96%物质的]喹啉-6-6。