Synlett

An Efficient Synthesis of Functionalized 6, 10-Dioxo-6, 10-dihydro-5H-pyrido [1, 2-a] quinoxalines and 6, 10-Dioxo-6, 10-dihydropyrido [2, 1-c][1, 4] benzoxazines

I Yavari, S Souri, M Sirouspour, MJ Bayat

文献索引：Yavari, Issa; Souri, Sanaz; Sirouspour, Mehdi; Bayat, Mohammad J. Synlett, 2009 , # 12 p. 1921 - 1922

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被引用次数: 4

摘要

Abstract An efficient synthesis of alkyl 8-hydroxy-6, 10-dioxo-6, 10-dihydro-5H-pyrido [1, 2-a] quinoxaline-7-carboxylates and alkyl 8-hydroxy-6, 10-dioxo-6, 10-dihydropyrido [2, 1-c][1, 4] benzoxazine-7-carboxylates is described. This involves the reaction between malonyl dichloride and alkyl 2-[3, 4-dihydro-3-oxoquinoxaline 2 (1H)-ylidene] acetates or alkyl 2-(2- oxo-2H-benzo [b][1, 4] oxazin-3 (4H)-ylidene) acetates in CH 2 Cl 2 at room temperature.