Methylation of 5-Isonitroso-1,3-dioxine- 4,6-diones with Diazomethane and Some Reactions of Its Products
摘要:
Methylation of 5-isonitroso-1,3-dioxine-4,6-diones (1) with diazomethane afforded 5-methoxyimino-1,3-dioxine-4,6-diones (4) and 5-methylimino-1,3-dioxine-4,6-dione N-oxides (5) together with a cyclic nitrone (7) as a minor product. Compound (5) reacted with two molar equivalents of triphenylphosphine to give phosphonium betaines (8) whereas photoreaction of 5 formed novel spiro compounds (9)via oxaziridine intermediates (G).
Methylation of 5-Isonitroso-1,3-dioxine- 4,6-diones with Diazomethane and Some Reactions of Its Products
摘要:
Methylation of 5-isonitroso-1,3-dioxine-4,6-diones (1) with diazomethane afforded 5-methoxyimino-1,3-dioxine-4,6-diones (4) and 5-methylimino-1,3-dioxine-4,6-dione N-oxides (5) together with a cyclic nitrone (7) as a minor product. Compound (5) reacted with two molar equivalents of triphenylphosphine to give phosphonium betaines (8) whereas photoreaction of 5 formed novel spiro compounds (9)via oxaziridine intermediates (G).
Methylation of 5-isonitroso-1,3-dioxine-4,6-diones (1) with diazomethane afforded 5-methoxyimino-1,3-dioxine-4,6-diones (4) and 5-methylimino-1,3-dioxine-4,6-dione N-oxides (5) together with a cyclic nitrone (7) as a minor product. Compound (5) reacted with two molar equivalents of triphenylphosphine to give phosphonium betaines (8) whereas photoreaction of 5 formed novel spiro compounds (9)via oxaziridine intermediates (G).