Ionic liquid i.e. 1-Pentyl-3-methylimidazolium Bromide Mediated Synthesis of 2-phenylbenzoxazole

Pawan P. Kalbende¹

1. Department of Chemistry, Jagdamba Mahavidyalaya, Achalpur City-444806 (MS), India.

Section:Research Paper, Product Type: Journal-Paper
Vol.7 , Issue.2 , pp.23-28, Apr-2020

Online published on Apr 30, 2020

Copyright © Pawan P. Kalbende . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
An efficient and green synthesis of 2-phenylbenzoxazole have been carried out by a simple condensation of 2-aminophenol and aromatic aldehyde in an inexpensive ionic liquid i.e. 1-pentyl-3-methylimidazolium bromide ([pmIm]Br) by microwave irradiation under solvent free condition. Initially, imidazolium based ionic liquid i.e. 1-Pentyl-3-methylimidazolium bromide [pmIm]Br have been synthesized by microwave irradiation from 1-methylimidazole and n-pentyl bromide. The structure of newly synthesized ionic liquid and 2-phenylbenzoxazole have been confirmed by spectral studies such as UV-Vis, FT-IR and 1H-NMR spectroscopy techniques. Ionic liquid i. e. [pmIm]Br as a reaction media offers several advantages including non-toxic, non-corrosive, shorter reaction time, high yield of the products, mild reaction conditions as well as simple experimental and isolation procedures.

Key-Words / Index Term :
Ionic liquid, Microwave, [pmIm]Br, Imidazolium, Catalyst-free, Green chemistry

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