Zn(OTf) 2 -mediated C H activation: An expeditious and solvent-free synthesis of aryl/alkyl substituted quinolines
作者:Prashant B. Sarode、Sandeep P. Bahekar、Hemant S. Chandak
DOI:10.1016/j.tetlet.2016.10.113
日期:2016.12
Zinc(II) triflate catalyzed three-component coupling reactions of alkynes, amines and aldehydes leading to the formation of aryl/alkyl substituted quinolines has been described. Notably, the reaction proceeded efficiently and effectively without the use of ligand, co-catalyst, solvent or inert atmosphere. This robust solvent-free process operates under an ambient atmosphere and avoids the use of precious
已经描述了三氟甲磺酸锌(II)催化炔烃,胺和醛的三组分偶联反应,该反应导致形成芳基/烷基取代的喹啉。值得注意的是,该反应在不使用配体,助催化剂,溶剂或惰性气氛的情况下有效地进行。这种强大的无溶剂工艺可在环境气氛下运行,避免了使用贵金属,危险溶剂和苛刻的反应条件。这种原子经济过程消除了多步合成中产生的浪费。此外,胺和丁醛的假三组分Povarov反应在相同的绿色条件下进行,从而能够形成2,3-二烷基喹啉。