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Synthesis of Isocoumarins through Three-Component Couplings of Arynes, Terminal Alkynes, and Carbon Dioxide Catalyzed by an NHC-Copper Complex
被引:95
|作者:
Yoo, Woo-Jin
[1
]
Nguyen, Thanh V. Q.
[1
]
Kobayashi, Shu
[1
]
机构:
[1] Univ Tokyo, Sch Sci, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan
基金:
日本科学技术振兴机构;
日本学术振兴会;
关键词:
alkynes;
arynes;
carbon dioxide;
copper;
multicomponent reactions;
3-SUBSTITUTED ISOCOUMARINS;
INTRAMOLECULAR CYCLIZATION;
ACID-DERIVATIVES;
CARBOXYLIC-ACIDS;
BENZOIC-ACIDS;
H BONDS;
CO2;
TRANSFORMATION;
ESTERS;
PHTHALIDES;
D O I:
10.1002/anie.201404692
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A copper-catalyzed multicomponent coupling reaction between in situ generated ortho-arynes, terminal alkynes, and carbon dioxide was developed to access isocoumarins in moderate to good yields. The key to this CO2-incorporating reaction was the use of a versatile N-heterocyclic carbene/copper complex that was able to catalyze multiple transformations within the three-component reaction.
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页码:10213 / 10217
页数:5
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