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A novel and efficient synthesis of 3,3-disubstituted indol-2-ones via Passerini three-component reactions in the presence of 4 Å molecular sieves
被引:9
|作者:
Esmaeili, Abbas Ali
[1
,2
]
Ghalandarabad, Saeid Amini
[1
]
Jannati, Saeideh
[1
]
机构:
[1] Univ Birjand, Fac Sci, Dept Chem, Birjand, Iran
[2] Ferdowsi Univ Mashhad, Fac Sci, Dept Chem, Mashhad, Iran
关键词:
Isatin;
Isocyanide;
Passerini coupling reaction;
Carboxylic acid;
3,3-Disubstituted indol-2-ones;
DIALKYL ACETYLENEDICARBOXYLATES;
CYANOHYDRIN ESTERS;
BENZOYL CYANIDE;
ALDEHYDES;
ISOCYANIDES;
CONVENIENT;
CHEMISTRY;
ISATINS;
KETONES;
D O I:
10.1016/j.tetlet.2012.11.025
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The Passerini coupling of cyclohexylisocyanide with isatins and carboxylic acids in the presence of 4 angstrom molecular sieves is described. This process offers a highly efficient and atom-economic access to 3-acyloxy-3-carboxamido-1,3-dihydro-2H-indol-2-ones in high to excellent yields. (C) 2012 Elsevier Ltd. All rights reserved.
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页码:406 / 408
页数:3
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