Heterocycles p. 1057 - 1064 (2000)
Update date:2022-08-05
Topics:
Palacios, Francisco
Legido, Marta
De Heredia, Itziar Perez
Rubiales, Gloria
The reactivity of N-vinylic phosphazenes derived from dehydroaspartic esters towards acyl halides is reported. Treatment of conjugated phosphazene with acyl halides led to the formation of N-acylated dehydroaspartic esters and alkenyl-5(4H)-oxazolones. When the reaction was performed in the presence of diethylamine, 1-diethylamino-3,4-dimethoxycarbonyl-2-aza-1,3-butadiene was obtained. Reaction of substituted 5(4H)-oxazolones with water, ethanol and amines gave N-acylated dehydroaspartic acid derivatives.
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