Aminoacids in the synthesis of heterocyclic systems. The synthesis of methyl 2??acetylamino??3??dimethylaminopropenoate and 2??(N??methyl??N??trifluoroacetyl) amino??3 …

L Kralj, A Hvala, J Svete, L Golič…

Index: Kralj, Lucija; Hvala, Ales; Svete, Jurij; Golic, Ljubo; Stanovnik, Branko Journal of Heterocyclic Chemistry, 1997 , vol. 34, # 1 p. 247 - 255

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Citation Number: 36

Abstract

Abstract Methyl (Z)-2-acetylamino-3-dimethylaminopropenoate (3) was prepared from N- acetylglycine (1), which was converted with N, N-dimethylformamide and phosphorus oxychloride into 4-dimethylaminomethylene-2-methyl-5 (4H)-oxazolone (2), followed by treatment with methanol in the presence of potassium carbonate, into 3. The compound 3 was shown to be a versatile reagent in the synthesis of various heterocyclic systems. With ...