Cyclization reactions of some o-acylphenylhydrazones

J Slouka, V Bekárek, A Lyčka

文献索引：Slouka, Jan; Bekarek, Vojtech; Lycka, Antonin Collection of Czechoslovak Chemical Communications, 1982 , vol. 47, # 6 p. 1746 - 1756

全文：HTML全文

被引用次数: 5

摘要

Abstract The hydrazones Ia-Id and IIa-IId have been prepared by azo coupling of ethyl cyanacetylcarbamate and cyanacetamide, respectively, with diazotized o- aminoacetophenone, o-aminobenzophenone, 2-(2-aminobenzoyl) benzoic acid and 1- amino-9, 10-anthraquinone. The hydrazones Ia-Id have been alkaline or thermally cyclized to 2-aryl-4, 5-dioxo-2, 3, 4, 5-tetrahydro-1, 2, 4-triazine-6-carbonitriles IIIa-IIId. On boiling in ...