SE7605928L - WAY TO MAKE THE 1.5 AND 1,8-DIAMINON AGREEMENTS - Google Patents
WAY TO MAKE THE 1.5 AND 1,8-DIAMINON AGREEMENTSInfo
- Publication number
- SE7605928L SE7605928L SE7605928A SE7605928A SE7605928L SE 7605928 L SE7605928 L SE 7605928L SE 7605928 A SE7605928 A SE 7605928A SE 7605928 A SE7605928 A SE 7605928A SE 7605928 L SE7605928 L SE 7605928L
- Authority
- SE
- Sweden
- Prior art keywords
- aqueous
- compounds
- water
- catalytic hydrogenation
- diaminon
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/16—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
- C07C205/06—Compounds containing nitro groups bound to a carbon skeleton having nitro groups bound to carbon atoms of six-membered aromatic rings
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
These known substances are obtained by catalytic hydrogenation of the corresponding dinitronaphthalenes. While it was previously necessary to employ pure dinitro compounds because the technical-grade crude products are only hydrogenated slowly and incompletely, it is now possible to prepare them starting from crude dinitro compounds. These compounds are first treated with water or an aqueous solution with an alkaline reaction, if appropriate with addition of a solvent which is not miscible with water, such as benzene, naphthalene or halohydrocarbons, at a temperature between 0 DEG C and the boiling point of the mixture, the aqueous, or aqueous/organic, solvent phase is then separated off, and the product is subjected to conventional catalytic hydrogenation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752523351 DE2523351C2 (en) | 1975-05-27 | 1975-05-27 | Process for the preparation of 1,5- and 1,8-diaminonaphthalene |
Publications (1)
Publication Number | Publication Date |
---|---|
SE7605928L true SE7605928L (en) | 1976-11-28 |
Family
ID=5947485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7605928A SE7605928L (en) | 1975-05-27 | 1976-05-25 | WAY TO MAKE THE 1.5 AND 1,8-DIAMINON AGREEMENTS |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE842223A (en) |
CH (1) | CH622240A5 (en) |
DE (1) | DE2523351C2 (en) |
FR (1) | FR2312487A1 (en) |
GB (1) | GB1499699A (en) |
IT (1) | IT1061311B (en) |
SE (1) | SE7605928L (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1345888A1 (en) | 2000-12-22 | 2003-09-24 | Bayer Aktiengesellschaft | Method for the production of 1,5-naphthalenediamine |
DE10209644A1 (en) | 2002-03-05 | 2003-09-18 | Bayer Ag | Process for the preparation of a dinitronaphthalene isomer mixture with a high proportion of 1,5-dinitronaphthalene |
DE10224463A1 (en) | 2002-06-03 | 2003-12-11 | Bayer Ag | Process for the preparation of 5-nitro-3,4-dihydro-1 (2H) -naphthalinone, 1,5-naphthalenediamine and 1,5-naphthalenediisocyanate |
CN1687011B (en) * | 2005-03-31 | 2010-05-05 | 聂天明 | Method for refining amino naphthalenes |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4026944A (en) * | 1974-08-10 | 1977-05-31 | Bayer Aktiengesellschaft | Process for manufacturing diaminonaphthalene |
-
1975
- 1975-05-27 DE DE19752523351 patent/DE2523351C2/en not_active Expired
-
1976
- 1976-05-24 CH CH652776A patent/CH622240A5/en not_active IP Right Cessation
- 1976-05-25 SE SE7605928A patent/SE7605928L/en not_active Application Discontinuation
- 1976-05-25 IT IT4963976A patent/IT1061311B/en active
- 1976-05-25 GB GB2164476A patent/GB1499699A/en not_active Expired
- 1976-05-26 FR FR7616062A patent/FR2312487A1/en active Granted
- 1976-05-26 BE BE2055059A patent/BE842223A/en unknown
Also Published As
Publication number | Publication date |
---|---|
CH622240A5 (en) | 1981-03-31 |
DE2523351A1 (en) | 1976-12-09 |
FR2312487A1 (en) | 1976-12-24 |
DE2523351C2 (en) | 1982-12-02 |
GB1499699A (en) | 1978-02-01 |
IT1061311B (en) | 1983-02-28 |
FR2312487B1 (en) | 1980-11-07 |
BE842223A (en) | 1976-11-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE7605928L (en) | WAY TO MAKE THE 1.5 AND 1,8-DIAMINON AGREEMENTS | |
Field et al. | Alkanesulfonic Acid Anhydrides1 | |
MX5653E (en) | PROCEDURE TO REDUCE THE CONCENTRATION OF NITROSATION AGENTS IN 1-CHLORINE-2,6-DINITRO-4- (TRIFLUOROMETIL) -BENZENE | |
GB1074402A (en) | Improvements in and relating to the preparation of organoantimony compounds | |
Sai et al. | Copper‐Catalyzed Direct and Stereoselective Synthesis of Conjugated Enynes from α‐Allenols | |
Parham et al. | The Reaction of Dichlorocarbene with Benzofuran and Benzothiophene1 | |
ES491410A0 (en) | A PROCEDURE FOR THE PREPARATION OF 1,4-BIS (DICIAMETI-LEN) CYCLLOHEXANE | |
SE7514575L (en) | PROCEDURE FOR PREPARING POLYAMIDE FOAM. | |
Shin et al. | NOVEL SYNTHESIS OF THE TAUTOMERIC ISOMER OF THE AZIRINOMYCIN ETHYL ESTER AND ITS ANALOGUES | |
GB1124398A (en) | A method of preparing 5-amino-4-chloro-2-phenylpyridazine-3-one | |
NL182558C (en) | CONTINUOUS SOLVENT EXTRACTION / STEAM DISTILLATION PROCESS FOR THE EXTRACTION OF AROMATIC HYDROCARBONS. | |
ES415184A1 (en) | 2,5-disubstituted benzoic acids | |
SU468425A3 (en) | The method of obtaining 5-nitrofurfurylideneamine oxides | |
GB889993A (en) | Cyclization of substituted acetylenes to produce aromatic compounds | |
SU461091A1 (en) | The method of joint production of butadiene-1,3 and formalmazine | |
US2485185A (en) | Nitroparawin solvent process for | |
SU131759A1 (en) | The method of obtaining N-methylcarbamidomethyl O1O'-dimethylthiophosphate | |
SU497277A1 (en) | The method of obtaining 2,5-dimethylhexanediol-2,6 | |
SU463656A1 (en) | The method of purification of hydrocarbons from impurities of cyclopentadiene | |
SU583994A1 (en) | Method of separating aromatic hydrocarbons and hydrocarbon mixtures | |
US1733218A (en) | Lucien dtjpont | |
US2216574A (en) | Preparation of halogen derivatives of acetopropanol | |
SU374325A1 (en) | METHOD OF OBTAINING N-EHESOPHOSPHORILURETHANES | |
US1309551A (en) | Process of producing explosive compounds and product thereof | |
SU439085A1 (en) | Method of producing a mixture of cyclohexanol and cyclohexanone |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 7605928-6 Format of ref document f/p: F |