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GB782258A - A process for the manufacture of -Ï-cyanocarboxamides - Google Patents

A process for the manufacture of -Ï-cyanocarboxamides

Info

Publication number
GB782258A
GB782258A GB14439/56A GB1443956A GB782258A GB 782258 A GB782258 A GB 782258A GB 14439/56 A GB14439/56 A GB 14439/56A GB 1443956 A GB1443956 A GB 1443956A GB 782258 A GB782258 A GB 782258A
Authority
GB
United Kingdom
Prior art keywords
cyano
dinitriles
exchanger
anion exchangers
anion
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
GB14439/56A
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.)
Inventa AG fuer Forschung und Patentverwertung
Original Assignee
Inventa AG fuer Forschung und Patentverwertung
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 Inventa AG fuer Forschung und Patentverwertung filed Critical Inventa AG fuer Forschung und Patentverwertung
Publication of GB782258A publication Critical patent/GB782258A/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

o - Cyano - carboxamides are prepared by hydrolysing in the presence of anion exchangers o : o 1-dinitriles in which at least 2 carbon atoms separate the two cyano groups. The anion exchanger is activated by a strong base before the process is commenced and may be reactivated at intervals as the activity drops off due to adsorption of by-products. The temperature may be 20-100 DEG C., depending on the stability of the exchanger, preferably 60-80 DEG C. The dinitriles may be used in aqueous emulsion or aqueous alcoholic solution, at a concentration of 15-25 per cent. The process may be carried out batch-wise or continuously, suitable apparatus for the latter being shown. Various anion exchangers are suitable, e.g. Dowex and those known under the Registered Trade Marks of "Amberlite" and "Permutit." Examples show the production of o -cyano-propionamide, -butyramide, -valeramide, -capramide and -oenanthramide.
GB14439/56A 1955-05-26 1956-05-09 A process for the manufacture of -Ï-cyanocarboxamides Expired GB782258A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH782258X 1955-05-26

Publications (1)

Publication Number Publication Date
GB782258A true GB782258A (en) 1957-09-04

Family

ID=4536319

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14439/56A Expired GB782258A (en) 1955-05-26 1956-05-09 A process for the manufacture of -Ï-cyanocarboxamides

Country Status (1)

Country Link
GB (1) GB782258A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029495A1 (en) * 1979-11-24 1981-06-03 Degussa Aktiengesellschaft Process for the preparation of 3-cyanopropionic acid amide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029495A1 (en) * 1979-11-24 1981-06-03 Degussa Aktiengesellschaft Process for the preparation of 3-cyanopropionic acid amide
US4313894A (en) 1979-11-24 1982-02-02 Degussa Aktiengesellschaft Process for the production of 3-cyanopropionamide

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