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GB550486A - Improvements in the manufacture of diketen - Google Patents

Improvements in the manufacture of diketen

Info

Publication number
GB550486A
GB550486A GB832541A GB832541A GB550486A GB 550486 A GB550486 A GB 550486A GB 832541 A GB832541 A GB 832541A GB 832541 A GB832541 A GB 832541A GB 550486 A GB550486 A GB 550486A
Authority
GB
United Kingdom
Prior art keywords
diketene
solution
ketene
per cent
diketen
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
GB832541A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB832541A priority Critical patent/GB550486A/en
Publication of GB550486A publication Critical patent/GB550486A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/87—Preparation of ketenes or dimeric ketenes
    • C07C45/88—Preparation of ketenes or dimeric ketenes from ketones

Landscapes

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

Abstract

550,486. Diketene. NEW, R. G. A., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 2,1941. No. 8325. [Class 2 (iii)] Diketene is produced by preventing rise of temperature in a solution of ketene in acetone. The times necessary for the conversion at 0‹ and 20‹C., of a 5 per cent. solution of ketene are 24 and 8 hours respectively. Preferably the solutions used are of 4-6 per cent. strength. The reaction may be effected continuously by causing the solution to flow at the necessary rate through externally cooled tubes. An example is given. It is stated that diketene reacts with aniline to produce acetoacetanilide,
GB832541A 1941-07-02 1941-07-02 Improvements in the manufacture of diketen Expired GB550486A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB832541A GB550486A (en) 1941-07-02 1941-07-02 Improvements in the manufacture of diketen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB832541A GB550486A (en) 1941-07-02 1941-07-02 Improvements in the manufacture of diketen

Publications (1)

Publication Number Publication Date
GB550486A true GB550486A (en) 1943-01-11

Family

ID=9850369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB832541A Expired GB550486A (en) 1941-07-02 1941-07-02 Improvements in the manufacture of diketen

Country Status (1)

Country Link
GB (1) GB550486A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1240847B (en) * 1963-08-02 1967-05-24 Basf Ag Process for the preparation of diketene from ketene in the presence of a solvent and an acidic dimerization catalyst

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1240847B (en) * 1963-08-02 1967-05-24 Basf Ag Process for the preparation of diketene from ketene in the presence of a solvent and an acidic dimerization catalyst

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