GB559682A - Production of unsaturated ketones - Google Patents

Production of unsaturated ketones

Info

Publication number
GB559682A
GB559682A GB5714/42A GB571442A GB559682A GB 559682 A GB559682 A GB 559682A GB 5714/42 A GB5714/42 A GB 5714/42A GB 571442 A GB571442 A GB 571442A GB 559682 A GB559682 A GB 559682A
Authority
GB
United Kingdom
Prior art keywords
calcium
sodium
magnesium
ketones
potassium
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
GB5714/42A
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.)
Shell Development Co
Original Assignee
Shell Development 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 Shell Development Co filed Critical Shell Development Co
Publication of GB559682A publication Critical patent/GB559682A/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
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
    • C07C45/72—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
    • C07C45/74—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups combined with dehydration

Landscapes

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

Abstract

559,682. Unsaturated ketones. SHELL DEVELOPMENT CO. April 28, 1942, No. 5714. Convention date, June 23, 1941. [Class 2 (iii)] Unsaturated ketones are produced by contacting the vapour of a lower ketone with an alkali or alkaline earth metal salt of a weak amphoteric inorganic acid at above 250‹C. Suitable catalysts are sodium, calcium, barium, magnesium and beryllium aluminates, sodium, calcium and caesium borates, potassium and calcium zincates, magnesium and lithium plumbates, potassium and strontium stannates, sodium and magnesium antimonates, calcium aurate, sodium, rubidium and calcium arsenates, and potassium titanate. The preparation of catalysts consisting of calcium aluminate, calcium metaborate and of sodium aluminate on pumice respectively is described. Tabular particulars are given for the production of mesityl oxide and isophorone from acetone under various conditions. To obtain mainly isophorone, the mesityl oxide produced may be recycled, thus reducing the further production of this substance. Instead of acetone other ketones may be employed, especially methyl ketones, but including also cyclopentanone, cyclohexanone, and acetophenone. Specification 552,706 is referred to.
GB5714/42A 1941-06-23 1942-04-28 Production of unsaturated ketones Expired GB559682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US559682XA 1941-06-23 1941-06-23

Publications (1)

Publication Number Publication Date
GB559682A true GB559682A (en) 1944-03-01

Family

ID=22001282

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5714/42A Expired GB559682A (en) 1941-06-23 1942-04-28 Production of unsaturated ketones

Country Status (1)

Country Link
GB (1) GB559682A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0095783A2 (en) * 1982-06-02 1983-12-07 Union Carbide Corporation Catalyzed aldol condensations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0095783A2 (en) * 1982-06-02 1983-12-07 Union Carbide Corporation Catalyzed aldol condensations
EP0095783A3 (en) * 1982-06-02 1985-08-28 Union Carbide Corporation Catalyzed aldol condensations

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