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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