title: Oxidative esterification of aldehydes using a recyclable oxoammonium salt.
abstract: A simple, high yielding, rapid route for the oxidative esterification of a wide range aldehydes to hexafluoroisopropyl (HFIP) esters using the oxoammonium salt 4-acetylamino-2,2,6,6-tetramethylpiperidine-1-oxoammonium tetrafluoroborate (1a) is reported. These esters can be readily transformed into a variety of other functional groups. The spent oxidant (1b) can be recovered and conveniently reoxidized to regenerate the oxoammonium salt, 1a.
authors.affiliation: Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, United States.
authors.forename: Christopher B
authors.initials: CB
authors.lastname: Kelly
authors.forename: Michael A
authors.initials: MA
authors.lastname: Mercadante
authors.forename: Rebecca J
authors.initials: RJ
authors.lastname: Wiles
authors.forename: Nicholas E
authors.initials: NE
authors.lastname: Leadbeater
mesh_terms: D000447:Aldehydes / Q000737:chemistry*; D001881:Borates / Q000737:chemistry*; D004951:Esterification; D015394:Molecular Structure; D010084:Oxidation-Reduction; D010880:Piperidines / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*; D012492:Salts / Q000737:chemistry*
chemical_list: C579777:4-acetylamino-2,2,6,6-tetramethylpiperidine-1-oxoammonium tetrafluoroborate; D000447:Aldehydes; D001881:Borates; D010880:Piperidines; D000644:Quaternary Ammonium Compounds; D012492:Salts