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Facile Preparation of 4-Substituted Quinazoline Derivatives
Published on: February 15, 2016
Highly Efficient Ultrasound Promoted Synthesis of 2-phenylquinoxaline in Glycerol- Water
Mujahed Shaikh1, Devendra Wagare2, Ashvini Sonone1
1Department of Chemistry, Dr. Rafiq Zakaria College for Women, Aurangabad (M.S.), India.
Introduction:
Quinoxalines show diversified applications in the field of medicinal chemistry.
Materials And Methods:
Therefore, we have designed a highly efficient, environmentally benign and one-pot protocol for the synthesis of 2-phenylquinoxaline from the reaction of Acetophenone, N-bromosuccinimide and 1,2-phenylenediamine under ultrasound irradiation in glycerol-water.
Results And Discussion:
We observed that, although the reaction efficiently completed in all of these solvents, the use of glycerol-water with different ratios gives consistently higher yields (89-94%) and decreases reaction times.
Conclusion:
The main advantages of this protocol are that it is a green method, avoids the use of toxic catalysts and volatile organic medium and the product is obtained with excellent yield.
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