Enhydrazine, II. Cycloacylierung von tautomeriefähigen Enhydrazinen
1982
Die Cycloacylierung der Enhydrazine 1, 9, 12 und 20 mit (Chlorthio)ameisensaurechlorid (2), (Chlorcarbonyl)isocyanat (10), N-Methyliminodicarbonyldichiorid (13) und den Malonyldichloriden 18 fuhrt zu den neuen 2-Oxothiazol- 3, 1-Aminouracil- 11 und 14, 1-Amino-2,4(1H,1H)-pyridindion- 19 oder 2,4,6(1H,3H,5H)-Pyridintrion-Derivaten 22. Es werden die Eigenschaften und spektroskopischen Daten angegeben.
Enehydrazines, II1). — Cycloacylation of Tautomerizable Enehydrazines
Cycloacylation of the enehydrazines 1, 9, 12, and 20 with (chlorothio)formyl chloride (2), (chlorocarbonyl) isocyanate (10), N-methyliminodicarbonyl dichloride (13), and the malonyl dichlorides 18 yields the new 2-oxothiazole 3, 1-aminouracil 11 and 14, 1-amino-2,4(1H,3H)-pyridinedione 19, or 2,4,6(1H,3H,5H)-pyridinetrione derivatives 22, the properties and spectroscopic data of which are reported.
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