Facile One-Pot Synthesis of Aryl, Heteryl Substituted Hydrazono Thiazolyl-Pyrazolone Derivatives via Three-Component Reaction
作者:Venkata Sreenivasa Rao Chunduru、Rajeswar Rao Vedula
DOI:10.1080/00397911.2010.536608
日期:2012.4.15
Abstract A facile, one-pot, three-component bis heterocyclized reaction for the synthesis of hydrazonothiazolyl-pyrazolones has been described. Reaction of phenacyl bromides or 3-(2-bromoacetyl)coumarins, with thiosemicarbazide and ethyl 2-(2-arylhydrazono)-3-oxobutanoates in AcOH/NaOAc, gave the corresponding products in good yields. All the synthesized compounds were characterized by their analytical
摘要 描述了一种用于合成 hydrazonothiazolyl-pyrazolones 的简便、一锅、三组分双杂环化反应。苯甲酰溴或 3-(2-溴乙酰基) 香豆素与氨基硫脲和 2-(2-芳基肼基)-3-氧代丁酸乙酯在 AcOH/NaOAc 中的反应以良好的收率得到相应的产物。所有合成的化合物都通过它们的分析和光谱数据进行表征。图形概要