GB900358A - Process for the manufacture of 1, 2-dicyano-cyclobutane - Google Patents

Process for the manufacture of 1, 2-dicyano-cyclobutane

Info

Publication number
GB900358A
GB900358A GB4048760A GB4048760A GB900358A GB 900358 A GB900358 A GB 900358A GB 4048760 A GB4048760 A GB 4048760A GB 4048760 A GB4048760 A GB 4048760A GB 900358 A GB900358 A GB 900358A
Authority
GB
United Kingdom
Prior art keywords
heating
hydrogen
acrylonitrile
dicyano
cyclobutane
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
GB4048760A
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.)
Knapsack AG
Knapsack Griesheim AG
Original Assignee
Knapsack AG
Knapsack Griesheim 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
Priority claimed from DEK36905A external-priority patent/DE1081008B/en
Priority claimed from DEK39004A external-priority patent/DE1089754B/en
Priority claimed from DEK39725A external-priority patent/DE1103330B/en
Application filed by Knapsack AG, Knapsack Griesheim AG filed Critical Knapsack AG
Publication of GB900358A publication Critical patent/GB900358A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/45—Carboxylic acid nitriles having cyano groups bound to carbon atoms of rings other than six-membered aromatic rings

Landscapes

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

Abstract

1,2-Dicyanocyclobutane is prepared by heating acrylonitrile at between 180 and 260 DEG C. under an inert gas pressure of between 10 and 100 atmospheres, for up to 6 hours in the presence of a sulphur compound R1-S-R2 in which R1 and R2 stand for hydrogen and/or an alkyl radical, and/or a metal of Group II to VIII of the Periodic Table, a thioamide e.g. thioacetamide, or a thiocyanate e.g. allyl isothiocyanate. Hydrogen sulphide, mono- or di-alkyl mercaptans, nickel, cobalt, iron, barium or zinc sulphide and tungsten disulphide, and dimethyl sulphoxide which yields formaldehyde and mercaptan on heating are given as examples, and may be used in a proportion of from 0.01 to 1.00% by weight. The unreacted acrylonitrile may be removed by distillation and recycled, and the product a cis-trans mixture redistilled, under vacuum to separate the isomers.
GB4048760A 1959-02-06 1960-11-24 Process for the manufacture of 1, 2-dicyano-cyclobutane Expired GB900358A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEK36905A DE1081008B (en) 1959-02-06 1959-02-06 Process for the production of 1, 2-dicyancyclobutane
DEK39004A DE1089754B (en) 1959-10-24 1959-10-24 Process for the production of 1, 2-dicyancyclobutane
DEK39725A DE1103330B (en) 1960-01-23 1960-01-23 Process for the production of 1, 2-dicyancyclobutane

Publications (1)

Publication Number Publication Date
GB900358A true GB900358A (en) 1962-07-04

Family

ID=27211150

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4048760A Expired GB900358A (en) 1959-02-06 1960-11-24 Process for the manufacture of 1, 2-dicyano-cyclobutane

Country Status (1)

Country Link
GB (1) GB900358A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10541445B2 (en) * 2015-10-29 2020-01-21 Lg Chem, Ltd. Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery comprising the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10541445B2 (en) * 2015-10-29 2020-01-21 Lg Chem, Ltd. Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery comprising the same

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