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Palladium-Catalyzed Oxidative Annulation of Acrylic Acid and Amide with Alkynes: A Practical Route to Synthesize α-Pyrones and Pyridones
被引:63
|作者:
Yu, Yue
[1
]
Huang, Liangbin
[1
]
Wu, Wanqing
[1
]
Jiang, Huanfeng
[1
]
机构:
[1] S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China
基金:
中国国家自然科学基金;
关键词:
AEROBIC INTERMOLECULAR CYCLIZATION;
OXO GOLD CARBENES;
C-H ACTIVATION;
BENZOIC-ACIDS;
GAMMA;
DERIVATIVES;
ALKENES;
BONDS;
BETA;
ACETOXYPALLADATION;
D O I:
10.1021/ol500611d
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A range of internal alkynes smoothly underwent palladium-catalyzed oxidative annulations with acrylic acid and amide to afford alpha-pyrones and pyridones in good to excellent yields with high regioselectivity. The usage of O-2 (1 atm) as a stoichiometric oxidant with H2O as the only byproduct under mild conditions makes this process more attractive and practical.
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页码:2146 / 2149
页数:4
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