Chemistry of iminofurans: V. Synthesis, structure, and cyclization of 4-R-4-oxo-2-[2-(2-oxo-1,2-diphenylethylidene)hydrazino]but-2-enoic acids

被引：0
|
作者：
O. A. Komarova
N. M. Igidov
A. E. Rubtsov
V. V. Zalesov
A. S. Makarov
Yu. S. Toksarova
机构：
[1] Perm State University,
[2] Perm State Farmaceutical Academy Perm,undefined
来源：
Russian Journal of Organic Chemistry | 2010年 / 46卷
关键词：
Vinyl Proton; Orange Crystal; Hydrazono; Hydrazino; Diphenylmethylene;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Reactions of 1,2-diphenylethane-1,2-dione hydrazone with 4-aryl-2-hydroxy-4-oxobut-2-enoic and 2-hydroxy-5,5-dimethyl-4-oxohex-2-enoic acids provided 4-aryl-4-oxo-2-[2-(2-oxo-1,2-diphenylethylidene) hydrazino]but-2-enoic and 5,5-dimethyl-4-oxo-2-[2-(2-oxo-1,2-diphenylethylidene)hydrazino]hex-2-enoic acids. The acids derivatives can exist in solutions as Z- and β-enehydrazino-or β-ketohydrazone forms, and under the treatment with acetic anhydride they undergo cyclization into 5-aryl- and 5-tert-butyl-3-[2-(2-oxo-1,2-diphenylethylidene)hydrazono]-2,3-furandiones.
引用
收藏
页码：236 / 240
页数：4
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