FR2172785A1 - Selective oxidn of methyl group of benzene hydrocarbon - - by molecular oxygen in lower carboxylic acid at elevated temp - Google Patents

Selective oxidn of methyl group of benzene hydrocarbon - - by molecular oxygen in lower carboxylic acid at elevated temp

Info

Publication number
FR2172785A1
FR2172785A1 FR7205846A FR7205846A FR2172785A1 FR 2172785 A1 FR2172785 A1 FR 2172785A1 FR 7205846 A FR7205846 A FR 7205846A FR 7205846 A FR7205846 A FR 7205846A FR 2172785 A1 FR2172785 A1 FR 2172785A1
Authority
FR
France
Prior art keywords
oxidn
carboxylic acid
selective
lower carboxylic
methyl group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7205846A
Other languages
French (fr)
Other versions
FR2172785B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gulf Research and Development Co
Original Assignee
Gulf Research and Development Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gulf Research and Development Co filed Critical Gulf Research and Development Co
Priority to FR7205846A priority Critical patent/FR2172785A1/en
Publication of FR2172785A1 publication Critical patent/FR2172785A1/en
Application granted granted Critical
Publication of FR2172785B1 publication Critical patent/FR2172785B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
    • C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups

Abstract

Selective oxidn. of the methyl substituent of a benzene structure carrying a nuclear methyl substituent and a higher alkyl substituent in which the C atom attached to the benzene structure carries sec. or tert. H atoms is effected by heating the benzene structure with O2 in presence of cobaltic ions, in a lower carboxylic acid at 85-135 degrees C., the amount of cobaltic ions being at least 0.6% wt. based on lower carboxylic acid, the oxidn. being effected in the absence of butane. Method gives high yields of the desired pdt. from cpds. such as p-cymene, p-ethyltoluene or sec. butyl-toluene.
FR7205846A 1972-02-22 1972-02-22 Selective oxidn of methyl group of benzene hydrocarbon - - by molecular oxygen in lower carboxylic acid at elevated temp Granted FR2172785A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7205846A FR2172785A1 (en) 1972-02-22 1972-02-22 Selective oxidn of methyl group of benzene hydrocarbon - - by molecular oxygen in lower carboxylic acid at elevated temp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7205846A FR2172785A1 (en) 1972-02-22 1972-02-22 Selective oxidn of methyl group of benzene hydrocarbon - - by molecular oxygen in lower carboxylic acid at elevated temp

Publications (2)

Publication Number Publication Date
FR2172785A1 true FR2172785A1 (en) 1973-10-05
FR2172785B1 FR2172785B1 (en) 1976-03-05

Family

ID=9093880

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7205846A Granted FR2172785A1 (en) 1972-02-22 1972-02-22 Selective oxidn of methyl group of benzene hydrocarbon - - by molecular oxygen in lower carboxylic acid at elevated temp

Country Status (1)

Country Link
FR (1) FR2172785A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2302462A (en) * 1939-11-06 1942-11-17 Newport Ind Inc Process of preparing cumic acid
FR1544331A (en) * 1966-11-10 1968-10-31 Petro Tex Chem Corp Oxidation of methyl mono-aryl compounds

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2302462A (en) * 1939-11-06 1942-11-17 Newport Ind Inc Process of preparing cumic acid
FR1544331A (en) * 1966-11-10 1968-10-31 Petro Tex Chem Corp Oxidation of methyl mono-aryl compounds

Also Published As

Publication number Publication date
FR2172785B1 (en) 1976-03-05

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Legal Events

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