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.
From Phenothiazine to 3-Phenyl-1,4-benzothiazine Derivatives as Inhibitors of the <i>Staphylococcus aureus</i> NorA Multidrug Efflux Pump
作者:Stefano Sabatini、Glenn W. Kaatz、Gian Maria Rossolini、David Brandini、Arnaldo Fravolini
DOI:10.1021/jm701623q
日期:2008.7.1
Overexpression of effluxpumps is an important mechanism by which bacteria evade effects of substrate antimicrobial agents and inhibition of such pumps is a promising strategy to circumvent this resistance mechanism. NorA is a Staphylococcusaureusmultidrugeffluxpump, the activity of which confers decreased susceptibility to many structurally unrelated agents, including fluoroquinolones, resulting
Remarkably Low Catalyst Loading in Brønsted Acid Catalyzed Transfer Hydrogenations: Enantioselective Reduction of Benzoxazines, Benzothiazines, and Benzoxazinones
作者:Magnus Rueping、Andrey P. Antonchick、Thomas Theissmann
DOI:10.1002/anie.200601832
日期:2006.10.13
Bioglycerol-Based Sulfonic Acid-Functionalized Carbon Catalyst as an Efficient and Reusable Catalyst for One-Pot Synthesis of 3- Substituted-2<i>H</i>-1,4-Benzothiazines
作者:Xiaojuan Yang、Liqiang Wu
DOI:10.1080/10426507.2013.765873
日期:2013.10.1
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.
Thieme Chemistry Journal Awardees - Where Are They Now? Asymmetric Brønsted Acid Catalyzed Transfer Hydrogenations
作者:Magnus Rueping、Erli Sugiono、Fenja Schoepke
DOI:10.1055/s-0029-1219528
日期:2010.4
products under mild reaction conditions. 1 Introduction 2 Nature’s Reductions: Dehydrogenases as a Role Model 3 Bronsted AcidcatalyzedTransferHydrogenation of Ketimines 4 Asymmetric Organocatalytic Reduction of Quinolines 5 Asymmetric Organocatalytic Reduction of N-Heterocycles 5.1 Asymmetric Bronsted AcidCatalyzed Hydrogenationof -Indoles 5.2 Asymmetric Bronsted AcidCatalyzed Hydrogenationof Benzoxazines