International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2572

Full Length Research Paper

Comparative study of microwave assisted and conventional synthesis of novel 2-quinoxalinone-3-hydrazone derivatives and its spectroscopic properties

Olayinka O. Ajani1*, Craig A. Obafemi2, Chinwe O. Ikpo1, Kolawole O. Ajanaku1, Kehinde O. Ogunniran1 and Oladele Olusola James1
1Chemistry Department, College of Science and Technology, Covenant University, Canaanland, KM 10, Idiroko Road, PMB 1023, Ota, Ogun State, Nigeria. 2Chemistry Department, Faculty of Science, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria.
Email: [email protected]

  •  Accepted: 19 March 2009
  •  Published: 30 April 2009

Abstract

A series of novel quinoxalin-2(1H)-one-3-hydrazone derivatives, 2a - 8d were synthesized via condensation of 3-hydrazinoquinoxalin-2(1H)-one, 1, with the corresponding ketones under microwave irradiation. The microwave assisted reaction was remarkably successful and gave hydrazones in higher yield at less reaction time compared to conventional heating method. The chemical structures of the compounds prepared were confirmed by analytical and spectral data. 

 

Key words: 3-Hydrazinoquinoxalin-2(1H)-one, isatin, microwave irradiation, uv-visible, conventional heating.

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