Bioglycerol-Based Sulfonic Acid-Functionalized Carbon Catalyst as an Efficient and Reusable Catalyst for One-Pot Synthesis of 3- Substituted-2H-1,4-Benzothiazines |
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| Authors: | Xiaojuan Yang Liqiang Wu |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering , Xinxiang University , Xinxiang , Henan , 453003 , P.R. China;2. School of Pharmacy , Xinxiang Medical University , Xinxiang , Henan , 453003 , P.R. China |
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| Abstract: | Abstract A simple and efficient synthetic protocol has been developed for the synthesis of 3-substituted-2H-1,4-benzothiazines by using bioglycerol-based sulfonic acid-functionalized carbon catalyst, devoid of corrosive acidic and basic reagents. The developed method has the advantages of good to excellent yields, short reaction times, operational simplicity, and a recyclable catalyst. |
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| Keywords: | Bioglycerol-based sulfonic acid-functionalized carbon catalyst 1,4-benzothiazine o-aminothiophenol ω-bromoketone |
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