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Efficient and simple approaches towards direct oxidative esterification of alcohols.

Efficient and simple approaches towards direct oxidative esterification of alcohols.

Chemistry (Weinheim an der Bergstrasse, Germany) (2014-10-07)

Ritwika Ray, Rahul Dev Jana, Mayukh Bhadra, Debabrata Maiti, Goutam Kumar Lahiri

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.

MATERIALI

N° Catalogo

Marchio

Descrizione del prodotto

Sigma-Aldrich

Metanolo, suitable for HPLC, ≥99.9%

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Ethyl alcohol, Pure 200 proof, for molecular biology

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2-Propanolo, suitable for HPLC, 99.9%

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2-Propanolo, ACS reagent, ≥99.5%

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Metanolo, ACS reagent, ≥99.8%

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Toluene, ACS reagent, ≥99.5%

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Toluene, suitable for HPLC, 99.9%

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Toluene, HPLC Plus, for HPLC, GC, and residue analysis, ≥99.9%

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Ethyl alcohol, Pure, 200 proof, meets USP testing specifications

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2-Propanolo, HPLC Plus, for HPLC, GC, and residue analysis, 99.9%

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