Combination of best promoter and micellar catalyst for more than kilo-fold rate acceleration in favor of chromic acid oxidation of D-galactose to D-galactonic acid in aqueous media at room temperature.
Picolinic acid, 2,2'-bipyridine and 1,10-phenanthroline promoted Cr(VI) oxidation of D-galactose to D-galactonic acid in three representative aqueous micellar media has been studied. The anionic surfactant (SDS) accelerated the rate of reaction while the cationic surfactant (CPC) and neutral surfactant (TX-100) retarded the reaction rate. Combination of bipy and SDS is the best choice for chromic acid oxidation of D-galactose to D-galactonic acid in aqueous media although 1,10-phenanthroline is best promoter in absence of micellar catalyst.
['Saha|Rumpa|R|', 'Ghosh|Aniruddha|A|', 'Sar|Pintu|P|', 'Saha|Indrajit|I|', 'Ghosh|Sumanta K|SK|', 'Mukherjee|Kakali|K|', 'Saha|Bidyut|B|']
D015082:2,2'-Dipyridyl D002384:Catalysis D002840:Chromates D005690:Galactose D008823:Micelles D010084:Oxidation-Reduction D010618:Phenanthrolines D010848:Picolinic Acids D013400:Sugar Acids D013696:Temperature D014867:Water
d-galactose Picolinic acid 1,10-Phenanthroline Cr(VI) 2,2′-Bipyridine Micellar catalysis