REACTIVITY OF 4-AZIDO-6-METHYL-2H-PYRAN-2-ONE AND 4-AMINO-6-METHYL-2H-PYRAN-2-ONE - PREPARATION OF 1-(6-METHYL-2-OXOPYRAN-4-YL)-1,2,3-TRIAZOLES AND 5-OXOPYRANO[4,3-B]PYRIDINES
R. Malet et al., REACTIVITY OF 4-AZIDO-6-METHYL-2H-PYRAN-2-ONE AND 4-AMINO-6-METHYL-2H-PYRAN-2-ONE - PREPARATION OF 1-(6-METHYL-2-OXOPYRAN-4-YL)-1,2,3-TRIAZOLES AND 5-OXOPYRANO[4,3-B]PYRIDINES, Journal of heterocyclic chemistry, 30(2), 1993, pp. 317-321
1,3-Dipolar cycloadditions of stable 4-azido-6-methyl-2H-pyran-2-one 1
with electron-rich alkenes and alkynes lead to 4,5-substituted 146-me
thyl-2-oxopyran-4-yl)-1,2,3-triazoles. Iminophosphoranes derived from
1 have also been synthesized. 5-Oxopyrano[4,3-b]pyridines are prepared
by reaction of 4-amino-6-methyl-2H-pyran-2-one 2 with beta-dicarbonyl
compounds.