GB1499589A - Catalytic reduction of nitrobenzene sulphonic acids - Google Patents

Catalytic reduction of nitrobenzene sulphonic acids

Info

Publication number
GB1499589A
GB1499589A GB5064475A GB5064475A GB1499589A GB 1499589 A GB1499589 A GB 1499589A GB 5064475 A GB5064475 A GB 5064475A GB 5064475 A GB5064475 A GB 5064475A GB 1499589 A GB1499589 A GB 1499589A
Authority
GB
United Kingdom
Prior art keywords
sulphonic acids
nitrobenzene
nitrobenzene sulphonic
dec
halogen
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
GB5064475A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB5064475A priority Critical patent/GB1499589A/en
Publication of GB1499589A publication Critical patent/GB1499589A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
    • C07C309/01—Sulfonic acids
    • C07C309/28—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C309/45—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
    • C07C309/46—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton having the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic rings

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1499589 Reduction of nitrobenzene sulphonic acids IMPERIAL CHEMICAL INDUSTRIES Ltd 2 Dec 1976 [10 Dec 1975] 50644/75 Heading C2C Aminobenzene sulphonic acids corresponding to the nitrobenzene sulphonic acids of the formula wherein R 1 , R 2 and R 4 are H, halogen or alkyl, or one of R 1 and R 2 may be OH, and R 3 is H, halogen or NO 2 ; are obtained therefrom by catalytic hydrogenation wherein the nitrobenzene sulphonic acid is introduced into a reduction chamber containing a catalyst and hydrogen under pressure at a rate substantially equal to that at which hydrogenation takes place. Preferred catalysts are the metals of Group VIII of Mendeleef's Periodic System, e.g. Co, Ni, Pt and Pd. Specified reaction conditions are 70‹ to 150‹ C. and pressures up to 600 p.s.i.g. The nitrobenzene sulphonic acid is preferably reduced in the form of an alkali metal salt.
GB5064475A 1976-12-02 1976-12-02 Catalytic reduction of nitrobenzene sulphonic acids Expired GB1499589A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5064475A GB1499589A (en) 1976-12-02 1976-12-02 Catalytic reduction of nitrobenzene sulphonic acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5064475A GB1499589A (en) 1976-12-02 1976-12-02 Catalytic reduction of nitrobenzene sulphonic acids

Publications (1)

Publication Number Publication Date
GB1499589A true GB1499589A (en) 1978-02-01

Family

ID=10456756

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5064475A Expired GB1499589A (en) 1976-12-02 1976-12-02 Catalytic reduction of nitrobenzene sulphonic acids

Country Status (1)

Country Link
GB (1) GB1499589A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2378753A1 (en) * 1977-01-26 1978-08-25 Bayer Ag PERFECTED PROCESS FOR PREPARING AMINONAPHTALENE SULPHONIC ACIDS, FROM NITRONAPHTALENESULPHONIC ACIDS BY CATALYTIC HYDROGENATION
EP0475044A1 (en) * 1990-08-08 1992-03-18 Bayer Ag Process for the production of aminoarylsulphonic acids
CN101817766A (en) * 2010-04-21 2010-09-01 浙江工业大学 Method for preparing metanilic acid by catalyzing and hydrogenating 3-nitrobenzenesultonic acid
CN103804242A (en) * 2012-11-09 2014-05-21 中国中化股份有限公司 Method for preparation of m-aminobenzenesulfonic acid by catalytic hydrogenation
CN112371173A (en) * 2020-11-27 2021-02-19 沈阳化工研究院有限公司 Platinum-carbon catalyst applied to hydrogenation of m-nitrobenzenesulfonic acid and preparation method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2378753A1 (en) * 1977-01-26 1978-08-25 Bayer Ag PERFECTED PROCESS FOR PREPARING AMINONAPHTALENE SULPHONIC ACIDS, FROM NITRONAPHTALENESULPHONIC ACIDS BY CATALYTIC HYDROGENATION
US4163752A (en) * 1977-01-26 1979-08-07 Bayer Aktiengesellschaft Process for the preparation of aminonaphthalenesulphonic acids
EP0475044A1 (en) * 1990-08-08 1992-03-18 Bayer Ag Process for the production of aminoarylsulphonic acids
CN101817766A (en) * 2010-04-21 2010-09-01 浙江工业大学 Method for preparing metanilic acid by catalyzing and hydrogenating 3-nitrobenzenesultonic acid
CN101817766B (en) * 2010-04-21 2013-01-16 浙江工业大学 Method for preparing m-aminobenzenesulfonic acid by catalyzing and hydrogenating 3-nitrobenzenesulfonic acid
CN103804242A (en) * 2012-11-09 2014-05-21 中国中化股份有限公司 Method for preparation of m-aminobenzenesulfonic acid by catalytic hydrogenation
CN103804242B (en) * 2012-11-09 2016-03-23 中国中化股份有限公司 A kind of shortening prepares the method for m-sulfanilic acid
CN112371173A (en) * 2020-11-27 2021-02-19 沈阳化工研究院有限公司 Platinum-carbon catalyst applied to hydrogenation of m-nitrobenzenesulfonic acid and preparation method thereof
CN112371173B (en) * 2020-11-27 2023-09-08 沈阳化工研究院有限公司 Platinum-carbon catalyst applied to hydrogenation of m-nitrobenzenesulfonic acid and preparation method thereof

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee