Cobalt-catalyzed oxidation of ethers using oxygen

Pei Li; Howard Alper

doi:10.1016/0304-5102(92)80040-N

Cobalt-catalyzed oxidation of ethers using oxygen

Pei Li, Howard Alper

Research output: Journal article publication › Journal article › Academic research › peer-review

40 Citations (Scopus)

Abstract

Cobalt(II) chloride-catalyzed oxidation of cyclic ethers with oxygen in 1,2-dimethoxyethane gives the corresponding lactones in reasonable to excellent yields. Oxidation of acyclic alkyl benzyl ethers affords the corresponding esters in yields which are dependent on the stability of alkyl radicals. The more stable the alkyl radical, the lower the yield of the formed ester. Oxidation of acyclic alkyl and heterocyclic ethers is also described. A free-radical mechanism is proposed involving participation of superoxocobalt.

Original language	English
Pages (from-to)	143-152
Number of pages	10
Journal	Journal of Molecular Catalysis
Volume	72
Issue number	2
DOIs	https://doi.org/10.1016/0304-5102(92)80040-N
Publication status	Published - 1 Mar 1992
Externally published	Yes

ASJC Scopus subject areas

General Engineering

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10.1016/0304-5102(92)80040-N

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title = "Cobalt-catalyzed oxidation of ethers using oxygen",

abstract = "Cobalt(II) chloride-catalyzed oxidation of cyclic ethers with oxygen in 1,2-dimethoxyethane gives the corresponding lactones in reasonable to excellent yields. Oxidation of acyclic alkyl benzyl ethers affords the corresponding esters in yields which are dependent on the stability of alkyl radicals. The more stable the alkyl radical, the lower the yield of the formed ester. Oxidation of acyclic alkyl and heterocyclic ethers is also described. A free-radical mechanism is proposed involving participation of superoxocobalt.",

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T1 - Cobalt-catalyzed oxidation of ethers using oxygen

AU - Li, Pei

AU - Alper, Howard

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N2 - Cobalt(II) chloride-catalyzed oxidation of cyclic ethers with oxygen in 1,2-dimethoxyethane gives the corresponding lactones in reasonable to excellent yields. Oxidation of acyclic alkyl benzyl ethers affords the corresponding esters in yields which are dependent on the stability of alkyl radicals. The more stable the alkyl radical, the lower the yield of the formed ester. Oxidation of acyclic alkyl and heterocyclic ethers is also described. A free-radical mechanism is proposed involving participation of superoxocobalt.

AB - Cobalt(II) chloride-catalyzed oxidation of cyclic ethers with oxygen in 1,2-dimethoxyethane gives the corresponding lactones in reasonable to excellent yields. Oxidation of acyclic alkyl benzyl ethers affords the corresponding esters in yields which are dependent on the stability of alkyl radicals. The more stable the alkyl radical, the lower the yield of the formed ester. Oxidation of acyclic alkyl and heterocyclic ethers is also described. A free-radical mechanism is proposed involving participation of superoxocobalt.

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U2 - 10.1016/0304-5102(92)80040-N

DO - 10.1016/0304-5102(92)80040-N

M3 - Journal article

SN - 0304-5102

VL - 72

SP - 143

EP - 152

JO - Journal of Molecular Catalysis

JF - Journal of Molecular Catalysis

IS - 2

ER -

Cobalt-catalyzed oxidation of ethers using oxygen

Abstract

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