Polyethylene Glycol (PEG-400): An Efficient and Recyclable Reaction Medium for the Synthesis of Pyrazolo[3,4-b]pyridin-6(7H)-one Derivatives

被引:30
作者
Zhong, Xiaoxing [1 ]
Dou, Guolan [1 ]
Wang, Deming [1 ]
机构
[1] China Univ Min & Technol, Sch Safety Engn, Xuzhou 221116, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
pyrazolo[3,4-b]pyridine-6(7H)-one; recyclable polyethylene glycol; aqueous media; synthesis; METHYLENE-GAMMA-BUTYROLACTONES; MULTICOMPONENT REACTIONS; 3-COMPONENT REACTION; AQUEOUS-MEDIA; CLAISEN REARRANGEMENT; ACID; MICROWAVE; CATALYST;
D O I
10.3390/molecules181113139
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A mild and efficient synthesis of pyrazolo[3,4-b]pyridine-6(7H)-one derivatives via a three-component reaction of an aldehyde, Meldrum's acid and 3-methyl-1H-pyrazol-5-amine using recyclable polyethylene glycol (PEG)-400 as a reaction medium is described. This method has the advantages of accessible starting materials, good yields, mild reaction conditions and begin environmentally friendly.
引用
收藏
页码:13139 / 13147
页数:9
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