Methyl 2??benzoylamino??3??dimethylaminopropenoate in the synthesis of fused pyranones. The synthesis of derivatives of tetrahydro??2H??1??benzopyran??2??one, …

B Ornik, Z Čadež, B Stanovnik…

Index: Ornik, Brina; Cadez, Zvonko; Stanovnik, Branko; Tisler, Miha Journal of Heterocyclic Chemistry, 1990 , vol. 27, # 4 p. 1021 - 1024

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Citation Number: 16

Abstract

Abstract Methyl 2-benzoylamino-3-dimethylaminopropenoate (1) reacts with carbocyclic and heterocyclic 1, 3-diketones or potential 1, 3-diketones, such as 1, 3-cyclohexanediones 2–4, and 4-hydroxy-2H-1-benzopyran-2-one derivative 17, in acetic acid to afford the corresponding 3-benzoylamino substituted 5-oxo-5, 6, 7, 8-tetrahydro-2H-1-benzopyran-2- ones 5–7, and 2H, 5H-pyrano [3, 2-c][1] benzopyran-2, 5-dione derivative 18. 1-Naphthol ( ...