Chemistry Letters p. 1157 - 1160 (1980)
Update date:2022-08-03
Topics:
Yoneda, Fumio
Hirayama, Ryoichi
Yamashita, Machiko
Treatment of 3-methyl-6-phenoxyuracils with the Vilsmeier reagent gave the corresponding 5-formyl-3-methyl-6-phenoxyuracils.Dehydrative cyclization of the above 5-formyluracils with polyphosphoric acid gave 3-methyl-2H-chromeno<2,3-d>pyrimidine-2,4(3H)-diones (3-methyl-5-deaza-10-oxaflavins).These 5-deaza-10-oxaflavins showed strong oxidizing power in oxidizing benzyl alcohol even under neutral conditions to give benzaldehyde, while they were hydrogenated to 1,5-dihydro-5-deaza-10-oxaflavins.
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Doi:10.1016/0040-4039(80)80235-8
(1980)Doi:10.1055/s-1975-23652
(1975)Doi:10.1248/cpb.45.996
(1997)Doi:10.1039/c39830000271
(1983)Doi:10.1002/hlca.19770600611
(1977)Doi:10.1016/S0040-4039(00)71478-X
(1980)
