ISSN : 0970 - 020X, ONLINE ISSN : 2231-5039
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Abstract

An Efficient Approach for the Synthesis of  Pyrazolo[1,2-a][1,2,4]Triazole-1,3-Diones Using an Electrochemical Cell

Khatereh Khandan-Barani1*, Mohammad Dodangeh2, Mehrnoosh Kangani2 and Malek-Taher Maghsoodlou2*

DOI : http://dx.doi.org/10.13005/ojc/320252


Abstract:

A mild and efficient method was applied for the one-pot three-component synthesis of pyrazolo[1,2-a][1,2,4]triazole-1,3-diones from the condensation between arylaldehydes, malononitrile and 4-phenylurazole using electrolysis in an undivided cell in the presence of sodium bromide as an electrolyte. This procedure has many advantages such as : no need to catalyst, clean work-up, short reaction time and high yield. The products were obtained just with the simple filtration.

Keywords:

pyrazolo[1,2-a][1,2,4]triazole-1,3-dione; 4-phenylurazole; malononitrile; electrolysis

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