GB705195A - Improvements relating to the oxidation of substituted cyclic compounds - Google Patents

Improvements relating to the oxidation of substituted cyclic compounds

Info

Publication number
GB705195A
GB705195A GB13808/51A GB1380851A GB705195A GB 705195 A GB705195 A GB 705195A GB 13808/51 A GB13808/51 A GB 13808/51A GB 1380851 A GB1380851 A GB 1380851A GB 705195 A GB705195 A GB 705195A
Authority
GB
United Kingdom
Prior art keywords
acid
acids
oxidation
sulphonic
nitric acid
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.)
Expired
Application number
GB13808/51A
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.)
Saab Bofors AB
Original Assignee
Bofors AB
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 Bofors AB filed Critical Bofors AB
Publication of GB705195A publication Critical patent/GB705195A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/02Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
    • C07C303/22Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof from sulfonic acids, by reactions not involving the formation of sulfo or halosulfonyl groups; from sulfonic halides by reactions not involving the formation of halosulfonyl groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Cyclic sulphonic acids having one or more side-chains or a further ring are oxidized in aqueous solution or aqueous nitric acid by means of nitric acid with or without other oxidizing agents, to carboxylic acids. The alkali or alkaline earth salts of the sulphonic acids may be used. Compounds containing as further substituents halogen-, nitro-, phenyl-, phenylalkyl- and carboxylicgroups may be used. Additional oxidizing agents specified include air, oxygen and nitrous gases, and soluble nitrites and nitrates. In examples the oxidation of o- and p-toluene sulphonic acids to the corresponding sulphobenzoic acids, 1:3 1-xylene-4-sulphonic acid to 4-sulphoisophthalic acid and b -naphthalene-sulphonic acid to 4-sulphophthalic acid are described, with the use of aqueous nitric acid and oxygen in one case; the oxidation of toluene sulphonic acids containing chloro-, nitro-, benzyl- and carboxyas substituents to the corresponding sulpho-carboxylic acids is also described.
GB13808/51A 1950-06-12 1951-06-11 Improvements relating to the oxidation of substituted cyclic compounds Expired GB705195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE705195X 1950-06-12

Publications (1)

Publication Number Publication Date
GB705195A true GB705195A (en) 1954-03-10

Family

ID=20315569

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13808/51A Expired GB705195A (en) 1950-06-12 1951-06-11 Improvements relating to the oxidation of substituted cyclic compounds

Country Status (1)

Country Link
GB (1) GB705195A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3681444A (en) * 1970-09-21 1972-08-01 Du Pont Preparation of para nitrobenzoic acids and 4{40 -nitro-4-biphenylcarboxylic acids
WO2001079151A1 (en) * 2000-04-12 2001-10-25 Bayer Aktiengesellschaft Method for producing substituted nitro benzoic acids by oxidation of corresponding nitro toluenes, nitro benzyl alcohols, esters and/or ethers
CN111362806A (en) * 2020-03-30 2020-07-03 江苏永安化工有限公司 Co-production method of 3-nitro-2-methylbenzoic acid and 3-nitrophthalic acid

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3681444A (en) * 1970-09-21 1972-08-01 Du Pont Preparation of para nitrobenzoic acids and 4{40 -nitro-4-biphenylcarboxylic acids
WO2001079151A1 (en) * 2000-04-12 2001-10-25 Bayer Aktiengesellschaft Method for producing substituted nitro benzoic acids by oxidation of corresponding nitro toluenes, nitro benzyl alcohols, esters and/or ethers
US6900349B2 (en) 2000-04-12 2005-05-31 Bayer Aktiengesellschaft Method for producing substituted nitro benzoic acids by oxidation of corresponding nitro toluenes, nitrol benzyl alcohols, esters and/or ethers
US7094923B2 (en) 2000-04-12 2006-08-22 Bayer Aktiengesellschaft Method for producing substituted nitro benzoic acids by oxidation of corresponding nitro toluenes, nitro benzyl alcohols, esters and/or ethers
CN111362806A (en) * 2020-03-30 2020-07-03 江苏永安化工有限公司 Co-production method of 3-nitro-2-methylbenzoic acid and 3-nitrophthalic acid
CN111362806B (en) * 2020-03-30 2022-01-18 江苏永安化工有限公司 Co-production method of 3-nitro-2-methylbenzoic acid and 3-nitrophthalic acid

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