ethyl 2-(2,2-dimethyl-6-nitro-2H-benzo[b][1,4]oxazin-3-yl)hydrazine-1-carboxylate → 4,4-dimethyl-8-nitro-2,4-dihydro-1H-benzo[b][1,2,4]triazolo[4,3-d][1,4]oxazin-1-one

Participants

Reaction Steps

Ethyl 2-(2,2-dimethyl-6-nitro-2H-benzo[b][1,4]oxazin-3-yl)hydrazine-1-carboxylate (300 mg) was dissolved in DMF (3 ml). The reaction mixture was microwaved at 200° C. for 10 min. The reaction solution was evaporated to give 4,4-dimethyl-8-nitro-2,4-dihydro-1H-benzo[b][1,2,4]triazolo[4,3-d][1,4]oxazin-1-one.

Provenance & Evidence