GB1193137A - Process for producing Crotonaldehyde-Ketene Addition Compounds - Google Patents

Process for producing Crotonaldehyde-Ketene Addition Compounds

Info

Publication number
GB1193137A
GB1193137A GB5462067A GB5462067A GB1193137A GB 1193137 A GB1193137 A GB 1193137A GB 5462067 A GB5462067 A GB 5462067A GB 5462067 A GB5462067 A GB 5462067A GB 1193137 A GB1193137 A GB 1193137A
Authority
GB
United Kingdom
Prior art keywords
addition compounds
crotonaldehyde
zinc
ketene
acac
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
GB5462067A
Inventor
Itaru Takasu
Masaru Higuchi
Yoshito Hijioka
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.)
Daicel Corp
Original Assignee
Daicel Corp
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 Daicel Corp filed Critical Daicel Corp
Priority to GB5462067A priority Critical patent/GB1193137A/en
Publication of GB1193137A publication Critical patent/GB1193137A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

1,193,137. Preparation of crotonaldehydeketene addition compounds. DAICEL Ltd. 30 Nov., 1967, No. 54620/67. Heading C2C. Crotonaldehyde-ketene addition compounds, which consist essentially of polyesters, possibly formed by ring opening of 3-hydroxy-4- hexenoic acid-(1)-lactone, and which may be used in the production of sorbic acid and its salts, are prepared by reacting ketene with crotonaldehyde in the presence of a bivalent metal complex of acetylacetone in which the metal is zinc, cadmium or manganese. Specified complexes are zinc, hydrated zinc, cadmium, and manganese (II) acetylacetonates and a compound of the formula (CH 3 COO)(acac) 3 Zn 2 in which acac is an acetylacetanato-group. The process may be carried out continuously.
GB5462067A 1967-11-30 1967-11-30 Process for producing Crotonaldehyde-Ketene Addition Compounds Expired GB1193137A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5462067A GB1193137A (en) 1967-11-30 1967-11-30 Process for producing Crotonaldehyde-Ketene Addition Compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5462067A GB1193137A (en) 1967-11-30 1967-11-30 Process for producing Crotonaldehyde-Ketene Addition Compounds

Publications (1)

Publication Number Publication Date
GB1193137A true GB1193137A (en) 1970-05-28

Family

ID=10471588

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5462067A Expired GB1193137A (en) 1967-11-30 1967-11-30 Process for producing Crotonaldehyde-Ketene Addition Compounds

Country Status (1)

Country Link
GB (1) GB1193137A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114702649A (en) * 2022-04-18 2022-07-05 南通醋酸化工股份有限公司 Immobilized catalyst for continuous condensation in sorbic acid preparation and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114702649A (en) * 2022-04-18 2022-07-05 南通醋酸化工股份有限公司 Immobilized catalyst for continuous condensation in sorbic acid preparation and preparation method thereof
CN114702649B (en) * 2022-04-18 2023-11-28 南通醋酸化工股份有限公司 Immobilized catalyst for continuous condensation in sorbic acid preparation and preparation method thereof

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee