One pot imino Diels–Alder reaction for the synthesis of 3-aryl-3,4-dihydrobenzo[f]quinoline derivatives catalyzed by antimony trichloride
作者:Gourhari Maiti、Rajiv Karmakar、Utpal Kayal
DOI:10.1016/j.tetlet.2013.03.093
日期:2013.6
An one pot simple and efficient approach toward the synthesis of dialkyl-3-aryl-3,4-dihydrobenzo[f]quinoline-1,2-dicarboxylate and its dehydro derivatives have been developed through the three-component reaction of aromatic aldehydes, 2-naphthylamine, and but-2-ynedioate catalyzed by SbCl3 under reflux in acetonitrile in good to excellent yields. (C) 2013 Elsevier Ltd. All rights reserved.
An efficient method for synthesis of 3-arylbenzo[f]quinoline-1,2-dicarboxylates catalyzed by SnCl2
A wide variety of 3-arylbenzo[f]quinoline-1,2-dicarboxylates and their dehydro derivatives have been synthesized by one-pot, three-component reaction of an aromatic aldehyde, naphthalene-2-amine, and dimethyl but-2-ynedioate in the presence of SnCl2 under reflux in acetonitrile. This procedure has several advantages, for example high yield, short reaction time, easy work-up, little pollution, and low price of the catalyst.