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PIDA-induced oxidative C-N bond coupling of quinoxalinones and azoles
被引:14
作者:
Wimonsong, Watchara
[1
,2
]
Yotphan, Sirilata
[1
,2
]
机构:
[1] Mahidol Univ, Fac Sci, Dept Chem, Rama VI Rd, Bangkok 10400, Thailand
[2] Mahidol Univ, Fac Sci, Ctr Excellence Innovat Chem, Rama VI Rd, Bangkok 10400, Thailand
来源:
关键词:
Quinoxalinone;
Azole;
Metal-free;
Oxidative coupling;
PIDA;
H AMINATION;
IN-VITRO;
QUINOXALIN-2(1H)-ONES;
ARYLATION;
DERIVATIVES;
DESIGN;
MILD;
INHIBITORS;
CHEMISTRY;
DISCOVERY;
D O I:
10.1016/j.tet.2020.131919
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A metal-free promoted direct oxidative C-N bond coupling of quinoxalinones and azoles for the rapid and effective synthesis of potent pharmaceutical important 3-(azol-1-yl)quinoxalin-2-one has been developed. Employing PIDA as the easily available mediator, the desired coupling products were isolated in moderate to excellent yields with a good substrate scope under operational simplicity and mild reaction conditions. Preliminary mechanistic studies suggested that a radical process is likely to be involved in the reaction. (C) 2020 Elsevier Ltd. All rights reserved.
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页数:8
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