GB960046A - Method of making haloarylamines - Google Patents
Method of making haloarylaminesInfo
- Publication number
- GB960046A GB960046A GB24640/62A GB2464062A GB960046A GB 960046 A GB960046 A GB 960046A GB 24640/62 A GB24640/62 A GB 24640/62A GB 2464062 A GB2464062 A GB 2464062A GB 960046 A GB960046 A GB 960046A
- Authority
- GB
- United Kingdom
- Prior art keywords
- haloarylamines
- prepared
- calcium
- catalyst
- rhodium
- 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
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/90—Regeneration or reactivation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Haloarylamines are prepared by hydrogenating halonitroaromatic compounds in the presence of a nickel or rhodium catalyst activated by a catalyst promotor consisting of magnesium or calcium hydroxide, calcium or sodium carbonate, calcium or sodium acetate or mixtures thereof. The reaction may be carried out at from 20 to 100 DEG C. and at pressures up to 30 atmospheres in an inert solvent. The starting material may contain besides halo and nitro other substituents such as alkyl, phenly, substituted phenyl, carboxyl and hydroxyl groups. Lists of suitable reactants and of haloarylamines which may be prepared are given. In examples m-bromoaniline and 4-bromo-3-amino biphenyl are prepared using, as catalyst, Raney nickel or rhodium, both catalysts being supported on alumina and promoted by calcium hydroxide.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB24640/62A GB960046A (en) | 1962-06-27 | 1962-06-27 | Method of making haloarylamines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB24640/62A GB960046A (en) | 1962-06-27 | 1962-06-27 | Method of making haloarylamines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB960046A true GB960046A (en) | 1964-06-10 |
Family
ID=10214914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB24640/62A Expired GB960046A (en) | 1962-06-27 | 1962-06-27 | Method of making haloarylamines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB960046A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2036313A1 (en) * | 1970-07-22 | 1972-02-03 | Farbenfabriken Bayer Ag, 5090 Leverkusen | Process for the preparation of halogen-substituted aromatic amines |
US4140719A (en) * | 1977-10-31 | 1979-02-20 | Merck & Co., Inc. | Solid-liquid phase transfer catalysis improved method of preparing 2,4-difluoroaniline |
US4294988A (en) * | 1977-10-31 | 1981-10-13 | Merck & Co., Inc. | Method of preparing 2,4-difluoroaniline |
-
1962
- 1962-06-27 GB GB24640/62A patent/GB960046A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2036313A1 (en) * | 1970-07-22 | 1972-02-03 | Farbenfabriken Bayer Ag, 5090 Leverkusen | Process for the preparation of halogen-substituted aromatic amines |
US4140719A (en) * | 1977-10-31 | 1979-02-20 | Merck & Co., Inc. | Solid-liquid phase transfer catalysis improved method of preparing 2,4-difluoroaniline |
US4294988A (en) * | 1977-10-31 | 1981-10-13 | Merck & Co., Inc. | Method of preparing 2,4-difluoroaniline |
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