Tungstate sulfuric acid (TSA)/KMnO4 as a novel heterogeneous system for rapid deoximation.
Neat chlorosulfonic acid reacts with anhydrous sodium tungstate to give tungstate sulfuric acid (TSA), a new dibasic inorganic solid acid in which two sulfuric acid molecules connect to a tungstate moiety via a covalent bond. A variety of oximes were oxidized to their parent carbonyl compounds under mild conditions with excellent yields in short times by a heterogeneous wet TSA/KMnO4 in dichloromethane system.
Karami
Bahador
B
Department of Chemistry, Yasouj University, Yasouj 75914-353, Iran. karami@mail.yu.ac.ir
Montazerozohori
Morteza
M
D006868:Hydrolysis; D007202:Indicators and Reagents / Q000737:chemistry; D008752:Methylene Chloride / Q000737:chemistry; D010084:Oxidation-Reduction; D010091:Oximes / Q000737:chemistry*; D011196:Potassium Permanganate / Q000737:chemistry*; D013464:Sulfuric Acids / Q000737:chemistry*; D017973:Tungsten Compounds / Q000737:chemistry*
D007202:Indicators and Reagents; D010091:Oximes; D013464:Sulfuric Acids; D017973:Tungsten Compounds; D011196:Potassium Permanganate; D008752:Methylene Chloride; C025399:sodium tungstate(VI); C023728:acetaldehyde oxime