Synthesis of new derivatives of bis-3(4-R-delta2-1,2,4-triazolin-5-one).
In the reaction of oxalic acid hydrazide with isocyanates, new derivatives of semicarbazide were obtained [I-XII]. Cyclization of these derivatives with an aqueous 2% sodium hydroxide led to formation of new derivatives of delta2-1,2,4-triazolin-5-one [XIII-XXIV].
Pachuta-Stec
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A
Department of Organic Chemistry, Faculty of Pharmacy, Medical University, Lublin, Poland.
Dobosz
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M
D007202:Indicators and Reagents; D017953:Isocyanates; D009682:Magnetic Resonance Spectroscopy; D019815:Oxalic Acid; D012663:Semicarbazides; D014230:Triazoles / Q000138:chemical synthesis*
D007202:Indicators and Reagents; D017953:Isocyanates; D012663:Semicarbazides; D014230:Triazoles; D019815:Oxalic Acid