Visible-light-initiated malic acid-promoted cascade coupling/cyclization of aromatic amines and KSCN to 2-aminobenzothiazoles without photocatalyst |
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| Affiliation: | 1. Department of Chemistry, Hunan University, Changsha 410082, China;2. Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, China;3. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;4. School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China;1. State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China;2. Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China;3. Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, China;1. College of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China;2. School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China;3. Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, China;1. Department of Chemistry, Hunan University of Science and Engineering, Yongzhou 425100, China;2. Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, China;3. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;4. School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China;1. Department of Chemistry, Hunan University of Science and Engineering, Yongzhou 425100, Hunan, China;2. Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, Hunan, China;3. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China |
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| Abstract: | By using ambient air as the oxidant and malic acid as the promoter, a practical method for the preparation of 2-aminobenzothiazoles through visible-light-initiated cascade reaction of aromatic amines and KSCN in eco-friendly bis(methoxypropy)ether under metal-, hazardous additive-, photocatalyst-free conditions was established. |
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| Keywords: | Air Photocatalysis Cascade reaction Photocatalyst-free 2-Aminobenzothiazoles |
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