Co(II) catalyzed solvent free auto-oxidation of methylbenzenes to substituted benzoic acids under phase transfer conditions

Nimer Taha; Mandan Chidambaram; Jihad Dakka; Yoel Sasson

doi:10.1007/s10562-009-9874-5

Co(II) catalyzed solvent free auto-oxidation of methylbenzenes to substituted benzoic acids under phase transfer conditions

Nimer Taha, Mandan Chidambaram, Jihad Dakka, Yoel Sasson^*

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

A novel methodology for the solvent free auto-oxidation of methylbenzenes under mild conditions is disclosed. The new scheme is based on a combination of metallic salt (cobalt chloride) and a quaternary ammonium phase transfer catalyst (didecyldimethylammonium bromide) which together form a complex soluble catalyst in the organic phase. Major reaction parameters are studied and optimized and the procedure is applied for the conversion of several substituted toluenes to the corresponding benzoic acids in excellent isolated yields.

Original language	English
Pages (from-to)	358-362
Number of pages	5
Journal	Catalysis Letters
Volume	129
Issue number	3-4
DOIs	https://doi.org/10.1007/s10562-009-9874-5
State	Published - May 2009

Keywords

Auto-oxidation
Cobalt chloride
Didecyldimethylammonium bromide
Phase transfer catalysis
Solvent free oxidation
Substituted benzoic acid

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abstract = "A novel methodology for the solvent free auto-oxidation of methylbenzenes under mild conditions is disclosed. The new scheme is based on a combination of metallic salt (cobalt chloride) and a quaternary ammonium phase transfer catalyst (didecyldimethylammonium bromide) which together form a complex soluble catalyst in the organic phase. Major reaction parameters are studied and optimized and the procedure is applied for the conversion of several substituted toluenes to the corresponding benzoic acids in excellent isolated yields.",

keywords = "Auto-oxidation, Cobalt chloride, Didecyldimethylammonium bromide, Phase transfer catalysis, Solvent free oxidation, Substituted benzoic acid",

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T1 - Co(II) catalyzed solvent free auto-oxidation of methylbenzenes to substituted benzoic acids under phase transfer conditions

AU - Taha, Nimer

AU - Chidambaram, Mandan

AU - Dakka, Jihad

AU - Sasson, Yoel

PY - 2009/5

Y1 - 2009/5

N2 - A novel methodology for the solvent free auto-oxidation of methylbenzenes under mild conditions is disclosed. The new scheme is based on a combination of metallic salt (cobalt chloride) and a quaternary ammonium phase transfer catalyst (didecyldimethylammonium bromide) which together form a complex soluble catalyst in the organic phase. Major reaction parameters are studied and optimized and the procedure is applied for the conversion of several substituted toluenes to the corresponding benzoic acids in excellent isolated yields.

AB - A novel methodology for the solvent free auto-oxidation of methylbenzenes under mild conditions is disclosed. The new scheme is based on a combination of metallic salt (cobalt chloride) and a quaternary ammonium phase transfer catalyst (didecyldimethylammonium bromide) which together form a complex soluble catalyst in the organic phase. Major reaction parameters are studied and optimized and the procedure is applied for the conversion of several substituted toluenes to the corresponding benzoic acids in excellent isolated yields.

KW - Auto-oxidation

KW - Cobalt chloride

KW - Didecyldimethylammonium bromide

KW - Phase transfer catalysis

KW - Solvent free oxidation

KW - Substituted benzoic acid

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IS - 3-4

ER -

Co(II) catalyzed solvent free auto-oxidation of methylbenzenes to substituted benzoic acids under phase transfer conditions

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Keywords

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