Ionic liquid catalyzed expeditious synthesis of 2‐aryl‐2,3‐dihydroquinolin‐4(1H)‐ones and 2‐aryl‐2,3‐dihydro‐4H‐chromen‐4‐ones under microwave irradiation
- 19 June 2009
- journal article
- other
- Published by Wiley in Journal of Heterocyclic Chemistry
- Vol. 46 (4) , 791-795
Abstract
Magnified image A facile and convenient synthesis of 2‐aryl‐2,3‐dihydroquinolin‐4(1H)‐one and 2‐aryl‐2,3‐dihydro‐4H‐chromen‐4‐one has been described using ionic liquid catalyzed intramolecular cyclization of the corresponding 2′‐aminochalcones and 2′‐hydroxychalcones, respectively. The rapid and fairly general protocol affords product in good yield. Ionic liquid, 1‐butyl‐3‐methylimidazolium tetrafluoroborate, was recovered and reused without loosing its efficiency. J. Heterocyclic Chem., (2009)Keywords
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