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[bmim]BF4-accelarated One-pot Synthesis of 2-amino Thiazole Derivatives
被引:1
作者:
Duc, Dau Xuan
[1
]
Chung, Nguyen Thi
[1
]
机构:
[1] Vinh Univ, Sch Educ, Dept Chem, Vinh City, Vietnam
关键词:
Ionic liquid;
thioureas;
NBS;
aryl ketones;
heterocyclic compounds;
thioamides;
2,4-DISUBSTITUTED THIAZOLES;
EFFICIENT SYNTHESIS;
CATALYST;
OXAZOLES;
D O I:
10.2174/1570178620666230207093953
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
An efficient and environmentally-friendly protocol for the synthesis of 2- (arylamino)thiazoles has been investigated. The two-step, three-component reaction of aryl ketones, N-bromosuccinimide, and thiourea derivatives was performed using [bmim][BF4] ionic liquid as a solvent in one pot and gave products in good to excellent yields. Furthermore, the ionic liquid could be reused up to the 5(th) time without a considerable decrease in the reaction yield. Thirteen thiazoles were obtained in high yields (78-89%) under mild conditions (ambient temperature and relatively short reaction time) and their structures were confirmed by NMR data.
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页码:689 / 695
页数:7
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