GB1440991A - Process for preparaing aminobenzenes - Google Patents

Process for preparaing aminobenzenes

Info

Publication number
GB1440991A
GB1440991A GB3931973A GB3931973A GB1440991A GB 1440991 A GB1440991 A GB 1440991A GB 3931973 A GB3931973 A GB 3931973A GB 3931973 A GB3931973 A GB 3931973A GB 1440991 A GB1440991 A GB 1440991A
Authority
GB
United Kingdom
Prior art keywords
aminobenzenes
aug
acid
preparaing
groups
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
GB3931973A
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.)
Hoechst AG
Original Assignee
Hoechst AG
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
Priority claimed from DE19722240849 external-priority patent/DE2240849C3/en
Priority claimed from DE19732311753 external-priority patent/DE2311753C3/en
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of GB1440991A publication Critical patent/GB1440991A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/30—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds
    • C07C209/32—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups
    • C07C209/36—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings in presence of hydrogen-containing gases and a catalyst
    • C07C209/365—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings in presence of hydrogen-containing gases and a catalyst by reduction with preservation of halogen-atoms in compounds containing nitro groups and halogen atoms bound to the same carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C211/00—Compounds containing amino groups bound to a carbon skeleton
    • C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
    • C07C211/44—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring
    • C07C211/52—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring the carbon skeleton being further substituted by halogen atoms or by nitro or nitroso groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C215/00—Compounds containing amino and hydroxy groups bound to the same carbon skeleton
    • C07C215/74—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton
    • C07C215/76—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton of the same non-condensed six-membered aromatic ring

Landscapes

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

Abstract

1440991 Aminobenzenes HOECHST AG 20 Aug 1973 [19 Aug 1972 9 March 1973] 39319/73 Heading C2C Aminobenzenes which are substituted by one or more halogen atoms, aliphatic sulphonyl groups or haloalkyl groups are prepared by hydrogenating the corresponding nitrobenzenes in the presence of a nickel catalyst in an aqueous phase having a pH of 6 to 7À5 and containing an oxy-acid of tri- or penta-valent phosphorus or boron, carbonic acid, or a C 1 to C 10 carboxylic acid and a sufficiently strong base or a salt of said acids and bases.
GB3931973A 1972-08-19 1973-08-20 Process for preparaing aminobenzenes Expired GB1440991A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722240849 DE2240849C3 (en) 1972-08-19 1972-08-19 Process for the preparation of aminobenzenes
DE19732311753 DE2311753C3 (en) 1973-03-09 Process for the preparation of aminobenzenes

Publications (1)

Publication Number Publication Date
GB1440991A true GB1440991A (en) 1976-06-30

Family

ID=25763726

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3931973A Expired GB1440991A (en) 1972-08-19 1973-08-20 Process for preparaing aminobenzenes

Country Status (8)

Country Link
JP (1) JPS5620306B2 (en)
CA (1) CA994359A (en)
FR (1) FR2196321B1 (en)
GB (1) GB1440991A (en)
IL (1) IL43009A (en)
IT (1) IT1001529B (en)
NL (1) NL7311193A (en)
SE (1) SE402762B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5068436A (en) * 1989-03-10 1991-11-26 E. I. Du Pont De Nemours And Company Hydrogenation of halonitrobenzenes without dehalogenation
US5432284A (en) * 1993-09-08 1995-07-11 G. D. Searle & Co. Process for the preparation of heterocyclic alkylamide derivatives

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2453055C3 (en) * 1974-11-08 1979-03-08 Hoechst Ag, 6000 Frankfurt Process for the preparation of 1,2,4-triaminobenzenes
US4020107A (en) * 1975-04-07 1977-04-26 E. I. Du Pont De Nemours And Co. Catalytic reduction of halonitroaromatic compounds
JPH062719B2 (en) * 1985-12-26 1994-01-12 日本化薬株式会社 Process for producing halo-substituted aminophenols

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1250453A (en) * 1959-09-10 1961-01-13 Du Pont Catalytic reduction process for nitrated and halogenated aromatic compounds
FR1334504A (en) * 1962-06-28 1963-08-09 Dow Chemical Co Process for the preparation of halo-arylamines
DE1720646C3 (en) * 1967-04-18 1975-07-10 Bayer Ag, 5090 Leverkusen Process for the production of polycondensates with terminal amino groups

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5068436A (en) * 1989-03-10 1991-11-26 E. I. Du Pont De Nemours And Company Hydrogenation of halonitrobenzenes without dehalogenation
US5432284A (en) * 1993-09-08 1995-07-11 G. D. Searle & Co. Process for the preparation of heterocyclic alkylamide derivatives

Also Published As

Publication number Publication date
SE402762B (en) 1978-07-17
JPS5620306B2 (en) 1981-05-13
IT1001529B (en) 1976-04-30
IL43009A (en) 1975-12-31
CA994359A (en) 1976-08-03
NL7311193A (en) 1974-02-21
FR2196321B1 (en) 1978-01-27
IL43009A0 (en) 1973-11-28
FR2196321A1 (en) 1974-03-15
JPS4956933A (en) 1974-06-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee