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AU634007B2 - Process for the preparation of n,n-dimethylamines - Google Patents

Process for the preparation of n,n-dimethylamines

Info

Publication number
AU634007B2
AU634007B2 AU68373/90A AU6837390A AU634007B2 AU 634007 B2 AU634007 B2 AU 634007B2 AU 68373/90 A AU68373/90 A AU 68373/90A AU 6837390 A AU6837390 A AU 6837390A AU 634007 B2 AU634007 B2 AU 634007B2
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.)
Ceased
Application number
AU68373/90A
Other versions
AU6837390A (en
Inventor
Detlef Dr. Kampmann
Claus Kniep
Rainer Dr. Lukas
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
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of AU6837390A publication Critical patent/AU6837390A/en
Application granted granted Critical
Publication of AU634007B2 publication Critical patent/AU634007B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • C07C209/24—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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (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.
AU68373/90A 1989-12-23 1990-12-21 Process for the preparation of n,n-dimethylamines Ceased AU634007B2 (en)

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 AU6837390A (en) 1991-06-27
AU634007B2 true 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 (8)

* Cited by examiner, † Cited by third party
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
WO2008157151A1 (en) * 2007-06-19 2008-12-24 Huntsman Petrochemical Corporation Reactive amine catalysts 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
CN113493414B (en) * 2020-03-19 2024-09-27 苏中药业集团股份有限公司 Deuterated substituted butenamide and preparation method and application thereof
CN117164463B (en) * 2023-09-06 2025-11-21 山东中科新材料研究院有限公司 Preparation method of N, N, N, N-tetramethyl ethylenediamine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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
JPH02243654A (en) * 1988-12-19 1990-09-27 Dow Chem Co:The Method of methylation by reduction of primary amine

Also Published As

Publication number Publication date
JPH0772159B2 (en) 1995-08-02
JPH06219993A (en) 1994-08-09
KR940005957B1 (en) 1994-06-25
ATE104950T1 (en) 1994-05-15
CA2032362C (en) 2001-03-27
KR910011757A (en) 1991-08-07
EP0435072B1 (en) 1994-04-27
EP0435072A2 (en) 1991-07-03
AU6837390A (en) 1991-06-27
CA2032362A1 (en) 1991-06-24
DE3942793A1 (en) 1991-06-27
ES2055855T3 (en) 1994-09-01
DE59005529D1 (en) 1994-06-01
EP0435072A3 (en) 1992-03-04

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired