Reusable proline-based ionic liquid catalyst for the simple synthesis of 2-arylbenzothiazoles in a biomass medium

被引：0
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作者：
Zhi-Yu Yu
Qiu-Sheng Fang
Jia Zhou
Zhi-Bin Song
机构：
[1] Jiangxi Normal University,Key Laboratory of Functional Small Organic Molecules, Ministry of Education, College of Chemistry and Chemical Engineering
来源：
Research on Chemical Intermediates | 2016年 / 42卷
关键词：
Ionic liquids; Amino acid; 2-Arylbenzothiazoles; Aerobic condensation;
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学科分类号：
摘要：
A simple, efficient, and eco-friendly aerobic procedure for synthesis of 2-substituted benzothiazoles catalyzed by facile prepared [N2222][Pro] in a biomass medium (ethyl lactate) has been developed. The reactions afford the target 2-arylbenzothiazoles in good to excellent yields (>80 %) under air condition and was observed without use of chromatography. In addition, this proline-based ionic liquid catalyst can be easily recycled six times without loss of catalytic activity in gram scale synthesis.
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页码：2035 / 2045
页数：10
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