N-methyl-2-pyrrolidone → 2-(3-Methyl-5-(2-nitrophenyl)-4H-1,2,4-triazol-4-yl)benzoic acid

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반응 단계

The mixture consisting of 1.8 g of 2-nitrobenzoic hydrazide, 1.6 g of 2-methylbenzo[d][1,3]oxazin-4-one and 5 ml of N-methylpyrrolidone was heated to 80° C. with stirring for 2 hours. After cooling, the mixture was admixed with water to slight cloudiness and stirred for a further 1 hour, during which time a solid precipitated out which was filtered off with suction, recrystallized from ethanol and dried under reduced pressure.

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