Bioglycerol-Based Sulfonic Acid-Functionalized Carbon Catalyst as an Efficient and Reusable Catalyst for One-Pot Synthesis of 3- Substituted-2H-1,4-Benzothiazines
摘要:
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.
Practical and Efficient Synthesis of 3-Aryl-2<i>H</i>-benzo[1,4]thiazine Derivatives Catalyzed by KHSO<sub>4</sub>
作者:Bita Baghernejad、Majid M. Heravi、Hossein A. Oskooie
DOI:10.1080/00397911003629465
日期:2011.1.31
[image omitted] KHSO4 efficiently catalyzes the condensation of o-aminothiophenols and 2-bromo-1-aryl-ethanones to yield 3-aryl-2H-benzo[1,4]thiazines in good yields.