GB753616A - Preparation of amino nitriles - Google Patents

Preparation of amino nitriles

Info

Publication number
GB753616A
GB753616A GB6969/54A GB696954A GB753616A GB 753616 A GB753616 A GB 753616A GB 6969/54 A GB6969/54 A GB 6969/54A GB 696954 A GB696954 A GB 696954A GB 753616 A GB753616 A GB 753616A
Authority
GB
United Kingdom
Prior art keywords
adiponitrile
amino
dinitrile
dicyano
reaction
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
GB6969/54A
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.)
Celanese Corp
Original Assignee
Celanese Corp
Celanese Corp of America
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 Celanese Corp, Celanese Corp of America filed Critical Celanese Corp
Publication of GB753616A publication Critical patent/GB753616A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Amino-nitriles are prepared by catalytically hydrogenating dinitriles in the presence of an organic solvent therefor and terminating the reaction before more than 65 per cent (preferably 40-60 per cent) has been reduced. Methylal is a suitable solvent and is preferably used in an amount of 1-3 parts by weight of dinitrile. Suitable reaction conditions are 90-130 DEG C. and 500-1500 p.s.i.g. using Raney nickel as catalyst. Anhydrous liquid ammonia is also preferably present. Other ferrous metal group catalysts may be used, e.g. cobalt. Other suitable solvents are dioxane, tetrahydrofurane and methylcyclohexane. The process is especially suitable for hydrogenating aliphatic dinitriles having at least 4 carbon atoms between the nitrile groups. Examples are given of the production of 6-amino-capronitrile and -7amino-heptanonitrile from adiponitrile and pimelonitrile respectively. Other suitable starting materials are succinonitrile, azelaonitrile, suberonitrile, brassylonitrile, b -methyl - adiponitrile, b - amyl - adiponitrile, 1 : 9 - dicyano - nonane, 1 : 10 - dicyanodecane and 1 : 18-dicyano-octadecane. The products of the reaction are separated from unchanged dinitrile by fractional distillation or extraction.
GB6969/54A 1953-03-12 1954-03-10 Preparation of amino nitriles Expired GB753616A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US753616XA 1953-03-12 1953-03-12

Publications (1)

Publication Number Publication Date
GB753616A true GB753616A (en) 1956-07-25

Family

ID=22125195

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6969/54A Expired GB753616A (en) 1953-03-12 1954-03-10 Preparation of amino nitriles

Country Status (1)

Country Link
GB (1) GB753616A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993016034A1 (en) * 1992-02-13 1993-08-19 E.I. Du Pont De Nemours And Company Preparation of 6-aminocapronitrile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993016034A1 (en) * 1992-02-13 1993-08-19 E.I. Du Pont De Nemours And Company Preparation of 6-aminocapronitrile

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