[Reaction of 2,4-dioxo-3,4-dihydro-2H-5,6-benzo-1,3-oxazines and analogous thioxo- and imino compounds with hydrazines. Synthesis of 5-[2-hydroxyphenyl]-3-oxo(thioxo or imino)-1,2,4-triazolines].
D006834:Hydrazines; D007097:Imines / Q000138:chemical synthesis; D010078:Oxazines; D013055:Spectrophotometry, Infrared; D014230:Triazoles / Q000138:chemical synthesis*
D006834:Hydrazines; D007097:Imines; D010078:Oxazines; D014230:Triazoles
Umsetzung von 2.4-Dioxo-3.4-dihydro-2H-5.6-benzo-1.3-oxazinen und analoger Thioxo-und Iminoverbindungen mit Hydrazinen. Darstellung von 5-[2-Hydroxyphenyl]-3-oxo(thioxo oder imino)-1.2.4-triazolinen