AU6837390A - Process for the preparation of n,n-dimethylamines - Google Patents
Process for the preparation of n,n-dimethylaminesInfo
- Publication number
- AU6837390A AU6837390A AU68373/90A AU6837390A AU6837390A AU 6837390 A AU6837390 A AU 6837390A AU 68373/90 A AU68373/90 A AU 68373/90A AU 6837390 A AU6837390 A AU 6837390A AU 6837390 A AU6837390 A AU 6837390A
- Authority
- AU
- Australia
- Prior art keywords
- dimethylamines
- preparation
- dimethylamine
- formaldehyde
- unconverted
- 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.)
- Granted
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
- C07C209/24—Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/24—Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds
- C07C209/26—Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds by reduction with hydrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
The present invention relates to a process for the preparation of N,N-dimethylamines by reaction of an aldehyde with dimethylamine and hydrogen under pressure and at elevated temperature in the presence of a hydrogenation catalyst containing Ni, Co, Cu, Mn, Fe, Rh, Pd and/or Pt. After separating off unconverted dimethylamine and excess hydrogen, formaldehyde or a formaldehyde-forming substance is added, and distillation is carried out.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3942793A DE3942793A1 (en) | 1989-12-23 | 1989-12-23 | METHOD FOR PRODUCING N, N-DIMETHYLAMINES |
DE3942793 | 1989-12-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU6837390A true AU6837390A (en) | 1991-06-27 |
AU634007B2 AU634007B2 (en) | 1993-02-11 |
Family
ID=6396321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU68373/90A Ceased AU634007B2 (en) | 1989-12-23 | 1990-12-21 | Process for the preparation of n,n-dimethylamines |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0435072B1 (en) |
JP (1) | JPH0772159B2 (en) |
KR (1) | KR940005957B1 (en) |
AT (1) | ATE104950T1 (en) |
AU (1) | AU634007B2 (en) |
CA (1) | CA2032362C (en) |
DE (2) | DE3942793A1 (en) |
ES (1) | ES2055855T3 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4331840A1 (en) * | 1993-09-20 | 1995-03-23 | Basf Ag | Process for the purification of tertiary amines from primary and secondary amines |
DE19731745C1 (en) * | 1997-07-23 | 1998-09-17 | Basf Ag | Alkyl-amine compounds preparation with high conversion and selectivity and minimum residue |
JP2010522078A (en) * | 2007-03-23 | 2010-07-01 | エージェンシー フォー サイエンス,テクノロジー アンド リサーチ | Palladium catalyst |
JP2010530436A (en) * | 2007-06-19 | 2010-09-09 | ハンツマン ペトロケミカル エルエルシー | Reactive amine catalyst for polyurethane foam |
JP5135944B2 (en) * | 2007-08-09 | 2013-02-06 | 東ソー株式会社 | Process for producing N, N-dimethylcyclohexylamine |
CN102614894B (en) * | 2012-03-04 | 2013-11-13 | 浙江建业化工股份有限公司 | Supported catalyst used for synthesis of diisopropylamine from isopropylamine and preparation method as well as application of supported catalyst |
CN113493414A (en) * | 2020-03-19 | 2021-10-12 | 江苏苏中药业集团股份有限公司 | Deuterated substituted butene amide and preparation method and application thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2535073C3 (en) * | 1975-08-06 | 1987-12-03 | Hoechst Ag, 6230 Frankfurt | Process for the preparation of tertiary aliphatic amines |
JPS54125603A (en) * | 1978-03-16 | 1979-09-29 | Kao Corp | Preparation of aliphatic amine |
DE3721539A1 (en) * | 1987-06-30 | 1989-01-12 | Ruhrchemie Ag | METHOD FOR PRODUCING METHYLAMINE |
DK642489A (en) * | 1988-12-19 | 1990-06-20 | Dow Chemical Co | PROCEDURE FOR REDUCED METHYLING OF PRIMARY AMINES |
-
1989
- 1989-12-23 DE DE3942793A patent/DE3942793A1/en not_active Withdrawn
-
1990
- 1990-12-12 ES ES90123912T patent/ES2055855T3/en not_active Expired - Lifetime
- 1990-12-12 EP EP90123912A patent/EP0435072B1/en not_active Expired - Lifetime
- 1990-12-12 DE DE59005529T patent/DE59005529D1/en not_active Expired - Fee Related
- 1990-12-12 AT AT9090123912T patent/ATE104950T1/en not_active IP Right Cessation
- 1990-12-14 KR KR1019900020649A patent/KR940005957B1/en not_active IP Right Cessation
- 1990-12-14 CA CA002032362A patent/CA2032362C/en not_active Expired - Fee Related
- 1990-12-17 JP JP2402867A patent/JPH0772159B2/en not_active Expired - Lifetime
- 1990-12-21 AU AU68373/90A patent/AU634007B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
CA2032362C (en) | 2001-03-27 |
JPH0772159B2 (en) | 1995-08-02 |
ES2055855T3 (en) | 1994-09-01 |
JPH06219993A (en) | 1994-08-09 |
DE3942793A1 (en) | 1991-06-27 |
EP0435072A3 (en) | 1992-03-04 |
AU634007B2 (en) | 1993-02-11 |
DE59005529D1 (en) | 1994-06-01 |
EP0435072B1 (en) | 1994-04-27 |
ATE104950T1 (en) | 1994-05-15 |
KR940005957B1 (en) | 1994-06-25 |
EP0435072A2 (en) | 1991-07-03 |
CA2032362A1 (en) | 1991-06-24 |
KR910011757A (en) | 1991-08-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |