New Approach to the Synthesis of 3-Arylcoumarins. Reaction of 3-Acyl-and 3-Ethoxycarbonylcoumarins with Hydrazide of p-Nitrophenylacetic Acid

MP Nemeryuk, VD Dimitrova, AL Sedov…

文献索引：Nemeryuk; Dimitrova; Sedov; Anisimova; Traven' Chemistry of Heterocyclic Compounds, 2002 , vol. 38, # 2 p. 249 - 250

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被引用次数: 2

摘要

3-Arylcoumarins are usually obtained by the cyclization of mono-or ortho-substituted benzenes such as phenols or salicylaldehydes with compounds containing phenyl substituent along with active methylene group [1, 2]. The use of coumarins themselves as starting compounds for the preparation of 3-arylcoumarins is much rarer. The reaction of coumarins with phenyldiazonium salts to give 3-arylcoumarins has been reported [3]. We ...