title: Efficient and simple approaches towards direct oxidative esterification of alcohols.
abstract: The present article describes novel oxidative protocols for direct esterification of alcohols. The protocols involve successful demonstrations of both "cross" and "self" esterification of a wide variety of alcohols. The cross-esterification proceeds under a simple transition-metal-free condition, containing catalytic amounts of TEMPO (2,2,6,6-tetramethyl-1-piperidinyloxy)/TBAB (tetra-n-butylammonium bromide) in combination with oxone (potassium peroxo monosulfate) as the oxidant, whereas the self-esterification is achieved through simple induction of Fe(OAc)2 /dipic (dipic=2,6-pyridinedicarboxylic acid) as the active catalyst under an identical oxidizing environment.
authors.affiliation: Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400 076 (India).
authors.forename: Ritwika
authors.initials: R
authors.lastname: Ray
authors.forename: Rahul Dev
authors.initials: RD
authors.lastname: Jana
authors.forename: Mayukh
authors.initials: M
authors.lastname: Bhadra
authors.forename: Debabrata
authors.initials: D
authors.lastname: Maiti
authors.forename: Goutam Kumar
authors.initials: GK
authors.lastname: Lahiri
mesh_terms: D000438:Alcohols / Q000737:chemistry*; D002384:Catalysis; D003497:Cyclic N-Oxides / Q000737:chemistry; D004951:Esterification; D005296:Ferrous Compounds / Q000737:chemistry; D010084:Oxidation-Reduction; D010848:Picolinic Acids; D011725:Pyridines; D013464:Sulfuric Acids / Q000737:chemistry
chemical_list: D000438:Alcohols; D003497:Cyclic N-Oxides; D005296:Ferrous Compounds; D010848:Picolinic Acids; D011725:Pyridines; D013464:Sulfuric Acids; C048813:potassium peroxymonosulfuric acid; C004860:dipicolinic acid; C003959:TEMPO
keywords: alcohols; direct oxidative esterification; iron; mechanistic study; transition-metal-free