title: 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.
abstract: 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.
authors: K.G. Engineering Institute, Bishnupur, Bankura, WB, India; Homogeneous Catalysis Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan 713104, WB, India.
authors: Rumpa
authors: R
authors: Saha
authors: Aniruddha
authors: A
authors: Ghosh
authors: Pintu
authors: P
authors: Sar
authors: Indrajit
authors: I
authors: Saha
authors: Sumanta K
authors: SK
authors: Ghosh
authors: Kakali
authors: K
authors: Mukherjee
authors: Bidyut
authors: B
authors: Saha
mesh_terms: D015082:2,2'-Dipyridyl / Q000737:chemistry*; D002384:Catalysis; D002840:Chromates / Q000737:chemistry*; D005690:Galactose / Q000737:chemistry*; D008823:Micelles; D010084:Oxidation-Reduction; D010618:Phenanthrolines / Q000737:chemistry*; D010848:Picolinic Acids / Q000737:chemistry*; D013400:Sugar Acids / Q000737:chemistry*; D013696:Temperature; D014867:Water / Q000737:chemistry
chemical_list: D002840:Chromates; D008823:Micelles; D010618:Phenanthrolines; D010848:Picolinic Acids; D013400:Sugar Acids; D014867:Water; C012991:galactonic acid; D015082:2,2'-Dipyridyl; C030614:picolinic acid; C034944:chromic acid; C025205:1,10-phenanthroline; D005690:Galactose
keywords: 1,10-Phenanthroline; 2,2′-Bipyridine; Cr(VI); Micellar catalysis; Picolinic acid; d-galactose