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Ionic Liquids: A Versatile Medium for the Synthesis of Six-membered Two Nitrogen- Containing Heterocycles

[ Vol. 23 , Issue. 1 ]

Author(s):

Navjeet Kaur*   Pages 76 - 96 ( 21 )

Abstract:


Due to special properties of ILs (ionic liquids) like their wide liquid range, good solvating ability, negligible vapour pressure, non-inflammability, environmentfriendly medium, high thermal stability, easy recycling and rate promoters etc. they are used in organic synthesis. Therefore, ionic liquids have attracted the attention of chemists and act as a catalyst and reaction medium in organic reaction with high activity. There is no doubt that ionic liquids have become a major subject of study for modern chemistry. More publications in the field have been observed each year, although there is some evidence that this is beginning to plateau at approximately 3500 papers each year. They have been the subject of several major reviews and books, dealing with different applications and aspects of their behavior. Highly efficient methods are explored for the preparation of six-membered two nitrogen-containing heterocycles with the application of IL as a catalyst and reaction medium from 1893 to 2018.

Keywords:

Ionic liquid, heterocycles, nitrogen-containing heterocycles, aza heterocycles, pyrimidine, quinazoline, quinoxaline.

Affiliation:

Department of Chemistry, Banasthali Vidyapith, Banasthali-304022 (Rajasthan)

Graphical Abstract:



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