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Substituent-controlled chemoselective synthesis of multi-substituted pyridones via a one-pot three-component cascade reaction
被引:26
|作者:
Liu, Shitao
[1
]
Li, Jisen
[1
]
Lin, Junjie
[1
]
Liu, Fujun
[1
]
Liu, Teng
[2
]
Huang, Chao
[1
]
机构:
[1] Yunnan Minzu Univ, Key Lab Intelligent Supramol Chem Univ Yunnan Pro, Sch Chem & Environm, Natl & Local Joint Engn Res Ctr Green Preparat Te, Kunming 650500, Yunnan, Peoples R China
[2] Qujing Normal Univ, Ctr Yunnan Guizhou Plateau Chem Funct Mat & Pollu, Qujing 655011, Peoples R China
基金:
中国国家自然科学基金;
关键词:
QUINONE IMINE KETALS;
SOLVENT-FREE;
2-PYRIDONE SYNTHESIS;
EFFICIENT SYNTHESIS;
HIGHLY EFFICIENT;
FACILE SYNTHESIS;
DOMINO;
CONSTRUCTION;
DERIVATIVES;
ENAMINONES;
D O I:
10.1039/c9ob02456e
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
An efficient and concise one-pot strategy for the synthesis of multisubstituted pyridones via a one-pot three-component cascade reaction catalyzed by Cs2CO3 under solvent-free conditions has been developed. The substituent-controlled chemoselective cycloaddition process involved steps including a Michael addition/ethanol elimination/intermolecular cyclization sequence utilizing anilines, diethyl acetylenedicarboxylate, and diethyl ethoxymethylenemalonate. In doing so, various 2-pyridone and 4-pyridone species (41 examples) could be obtained in good to excellent yields.
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页码:1130 / 1134
页数:5
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