GB362458A - Improvements relating to the manufacture of condensation products of aldehydes and to catalysts for use in such manufacture - Google Patents

Improvements relating to the manufacture of condensation products of aldehydes and to catalysts for use in such manufacture

Info

Publication number
GB362458A
GB362458A GB2646630A GB2646630A GB362458A GB 362458 A GB362458 A GB 362458A GB 2646630 A GB2646630 A GB 2646630A GB 2646630 A GB2646630 A GB 2646630A GB 362458 A GB362458 A GB 362458A
Authority
GB
United Kingdom
Prior art keywords
alcoholate
aluminium
alcohol
butyl
butylate
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
GB2646630A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Priority to GB2646630A priority Critical patent/GB362458A/en
Publication of GB362458A publication Critical patent/GB362458A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/44—Preparation of carboxylic acid esters by oxidation-reduction of aldehydes, e.g. Tishchenko reaction

Landscapes

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

Abstract

In the condensation of aldehydes to esters using an aluminium alcoholate as condensing agent, the reaction including the combination of aluminium and an alcohol to form the alcoholate is initiated in the presence of a preformed alcoholate free from halogeniferous or other auxiliary substances as catalyst, whilst excluding auxiliary substances such as halogen compounds from the reaction. Advantageously butyl alcohol may be used for the preparation of the alcoholate. The aluminium alcoholate, especially when using the butylate, may be employed for the condensation in the form of a suspension in excess of alcohol. When the aldehyde treated is acetaldehyde, and the alcoholate is employed suspended in butyl alcohol a partial conversion of the ethyl acetate formed into butyl acetate takes place. In an example, sheet aluminium shavings are added to preformed aluminium butylate free from auxiliary substances, the crystal paste is heated to melting, butanol is added gradually while heating, and, after cooling and setting aside a portion of the butylate for the next operation, acetaldehyde is added gradually while stirring and cooling and the mixture allowed to stand for 12 hours, whereby a mixture of ethyl and butyl acetates, ethyl alcohol and unchanged butyl alcohol is obtained, and separated by distillation or other known means.
GB2646630A 1930-09-04 1930-09-04 Improvements relating to the manufacture of condensation products of aldehydes and to catalysts for use in such manufacture Expired GB362458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2646630A GB362458A (en) 1930-09-04 1930-09-04 Improvements relating to the manufacture of condensation products of aldehydes and to catalysts for use in such manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2646630A GB362458A (en) 1930-09-04 1930-09-04 Improvements relating to the manufacture of condensation products of aldehydes and to catalysts for use in such manufacture

Publications (1)

Publication Number Publication Date
GB362458A true GB362458A (en) 1931-12-04

Family

ID=10244080

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2646630A Expired GB362458A (en) 1930-09-04 1930-09-04 Improvements relating to the manufacture of condensation products of aldehydes and to catalysts for use in such manufacture

Country Status (1)

Country Link
GB (1) GB362458A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516627A (en) * 1948-06-08 1950-07-25 Shell Dev Production of allyl acrylate from acrolein

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516627A (en) * 1948-06-08 1950-07-25 Shell Dev Production of allyl acrylate from acrolein

Similar Documents

Publication Publication Date Title
Hartman Methanolysis of triglycerides
GB362458A (en) Improvements relating to the manufacture of condensation products of aldehydes and to catalysts for use in such manufacture
Weizmann et al. Further observations on the guerbet reaction
US2179488A (en) Method for manufacturing ketones
US2098206A (en) Manufacture of alcohols
GB953775A (en) Processes for the preparation of sorbic acid and alkyl esters of sorbic acid
US1805281A (en) Process for effecting ester condensations
YU et al. Acid-Catalyzed Condensation of Phenols and Keto Acids
ES387492A1 (en) Suppository compositions and process for the preparation thereof
US2210469A (en) Manufacture of esters
US3960970A (en) Manufacture of d,l-methol
DE545849C (en) Process for the production of butyl alcohol
DE547641C (en) Process for the production of acetaldehyde
GB786003A (en) Novel dehydro-betacarotene and the manufacture and conversion thereof
GB285156A (en) Process for the preparation of vanillin and i-vanillin
DE617761C (en) Process for the preparation of propylene glycol monoalkyl ethers
US3375281A (en) Process for the preparation of stearone
SU61275A1 (en) The method of producing acetaldehyde
GB498916A (en) Sterol derivatives and process of forming same
US3192237A (en) Hydrogenation of 5-unsaturated steroidal 16-ylidenalkylcarboxylic acids
US1882564A (en) Stanley francis birch and william dallas scott
SU97082A1 (en) Method for preparing linalyl acetate
GB701093A (en) Manufacture of cyclic alcohols and esters thereof
GB708703A (en) Improvements in or relating to the preparation of a substituted amidopropane diol
GB914736A (en) New steroids, their formation and conversion into therapeutically valuable substances