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One-pot four-component reaction for convenient synthesis of functionalized 1-benzamidospiro[indoline-3,4′-pyridines]
被引:8
|作者:
Wang, Chao
[1
]
Jiang, Yan-Hong
[1
]
Yan, Chao-Guo
[1
]
机构:
[1] Yangzhou Univ, Coll Chem & Chem Engn, Yangzhou 225002, Peoples R China
来源:
BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY
|
2014年
/
10卷
基金:
中国国家自然科学基金;
关键词:
acetylenedicarboxylate;
benzohydrazide;
1,4-dihydropyridine;
multicomponent reaction;
one-pot reaction;
spiro[indoline-3,4'-pyridine;
1,4-DIPOLAR CYCLOADDITIONS;
MULTICOMPONENT REACTIONS;
FACILE SYNTHESIS;
CONSTRUCTION;
ARYLAMINES;
STRATEGIES;
ISATINS;
SPIROOXINDOLES;
D O I:
10.3762/bjoc.10.281
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The one-pot four-component reaction of benzohydrazide (2-picolinohydrazide), acetylenedicarboxylate, isatins and malononitrile (ethyl cyanoacetate) with triethylamine as base catalyst afforded functionalized 1-benzamidospiro[indoline-3,4'-pyridines] in good yields. H-1 NMR spectra indicated that an equilibrium of cis/trans-conformations exist in the obtained products.
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页码:2671 / 2676
页数:6
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