Oxadiazole condensed ring systems, II: Synthesis of new 2-aryl-1,3,4-oxadiazolo[3,2-a]-s-triazine-5,7(6H)-diones
摘要:
The syntheses of 1,3,4-oxadiazolo[3,2-a]-s-triazine-5, 7(6H)-diones 4 through the condensation of 2-amino-5-aryl-1,3,4-oxadiazoles 1 with ethoxycarbonyl isocyanate 2 is described. Methylation of 4b with trimethyl phosphate yielded the N-methyl derivative 5.
Oxadiazole condensed ring systems, II: Synthesis of new 2-aryl-1,3,4-oxadiazolo[3,2-a]-s-triazine-5,7(6H)-diones
摘要:
The syntheses of 1,3,4-oxadiazolo[3,2-a]-s-triazine-5, 7(6H)-diones 4 through the condensation of 2-amino-5-aryl-1,3,4-oxadiazoles 1 with ethoxycarbonyl isocyanate 2 is described. Methylation of 4b with trimethyl phosphate yielded the N-methyl derivative 5.