GB583646A - Improvements in and relating to the production of acyl cyanides - Google Patents

Improvements in and relating to the production of acyl cyanides

Info

Publication number
GB583646A
GB583646A GB2231644A GB2231644A GB583646A GB 583646 A GB583646 A GB 583646A GB 2231644 A GB2231644 A GB 2231644A GB 2231644 A GB2231644 A GB 2231644A GB 583646 A GB583646 A GB 583646A
Authority
GB
United Kingdom
Prior art keywords
anhydride
cyanide
giving
hydrogen cyanide
passed over
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
GB2231644A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to GB2231644A priority Critical patent/GB583646A/en
Publication of GB583646A publication Critical patent/GB583646A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/16—Preparation of carboxylic acid nitriles by reaction of cyanides with lactones or compounds containing hydroxy groups or etherified or esterified hydroxy groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

Acylcyanides are prepared by reacting in the vapour phase hydrogen cyanide and a carboxylic acid anhydride at an elevated temperature and in the presence of a surface active catalyst. The anhydride may be acetic-, benzoic-, propionic-, isobutyric-, adipic-, glutaric-, or sebacic anhydride, and specified catalysts are charcoal, silica gel, titania gel, alumina gel, alumina, boron- or aluminiumphosphate or "Superfiltrol" (Registered Trade Mark). In the examples: (1) acetic anhydride and hydrogen cyanide are passed over activated charcoal or silica gel giving acetyl cyanide; (2) isobutyric anhydride and hydrogen cyanide are passed over activated alumina giving isobutyryl cyanide; (3) benzoic anhydride, hydrogen cyanide and dioxane are passed over granular charcoal giving benzoyl cyanide.
GB2231644A 1944-11-13 1944-11-13 Improvements in and relating to the production of acyl cyanides Expired GB583646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2231644A GB583646A (en) 1944-11-13 1944-11-13 Improvements in and relating to the production of acyl cyanides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2231644A GB583646A (en) 1944-11-13 1944-11-13 Improvements in and relating to the production of acyl cyanides

Publications (1)

Publication Number Publication Date
GB583646A true GB583646A (en) 1946-12-23

Family

ID=10177414

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2231644A Expired GB583646A (en) 1944-11-13 1944-11-13 Improvements in and relating to the production of acyl cyanides

Country Status (1)

Country Link
GB (1) GB583646A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2346322A1 (en) * 1976-04-02 1977-10-28 Bayer Ag PROCESS FOR PREPARING ACYL CYANIDES THAT CAN BE USED AS RAW MATERIALS FOR THE SYNTHESIS OF HERBICIDES
FR2346321A1 (en) * 1976-04-02 1977-10-28 Bayer Ag PROCESS FOR PREPARING ACYLIC CYANIDES THAT CAN BE USED AS RAW MATERIALS FOR THE SYNTHESIS OF HERBICIDES
EP0043490A1 (en) * 1980-07-04 1982-01-13 Bayer Ag Preparation of acyl cyanides

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2346322A1 (en) * 1976-04-02 1977-10-28 Bayer Ag PROCESS FOR PREPARING ACYL CYANIDES THAT CAN BE USED AS RAW MATERIALS FOR THE SYNTHESIS OF HERBICIDES
FR2346321A1 (en) * 1976-04-02 1977-10-28 Bayer Ag PROCESS FOR PREPARING ACYLIC CYANIDES THAT CAN BE USED AS RAW MATERIALS FOR THE SYNTHESIS OF HERBICIDES
US4456565A (en) * 1976-04-02 1984-06-26 Bayer Aktiengesellschaft Process for the preparation of acyl cyanides
EP0043490A1 (en) * 1980-07-04 1982-01-13 Bayer Ag Preparation of acyl cyanides

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