GB553305A - Improvements in and relating to the production of unsaturated ketones and their related keto alcohols - Google Patents

Improvements in and relating to the production of unsaturated ketones and their related keto alcohols

Info

Publication number
GB553305A
GB553305A GB1171441A GB1171441A GB553305A GB 553305 A GB553305 A GB 553305A GB 1171441 A GB1171441 A GB 1171441A GB 1171441 A GB1171441 A GB 1171441A GB 553305 A GB553305 A GB 553305A
Authority
GB
United Kingdom
Prior art keywords
paraformaldehyde
parts
acetone
weight
product
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
GB1171441A
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.)
COLMORE ADHESIVES Ltd
Original Assignee
COLMORE ADHESIVES 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 COLMORE ADHESIVES Ltd filed Critical COLMORE ADHESIVES Ltd
Priority to GB1171441A priority Critical patent/GB553305A/en
Publication of GB553305A publication Critical patent/GB553305A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/04—Saturated compounds containing keto groups bound to acyclic carbon atoms
    • C07C49/17—Saturated compounds containing keto groups bound to acyclic carbon atoms containing hydroxy groups
    • 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
    • C07C45/65—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 splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups
    • C07C45/66—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 splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups by dehydration
    • 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
    • C07C45/75—Reactions with formaldehyde

Landscapes

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

Abstract

553,305. Keto-butanol derivatives. COLMORE ADHESIVES, Ltd., and WHITE, T. Sept. 12, 1941, No. 11714. [Class 2 (iii)] 3-Ketobutanol is prepared by reacting 40 parts by weight of paraformaldehyde with 300 parts by weight of acetone at a pH of between 7.5 and 9.0. 2-Methyl-3-ketobutanol is similarly obtained using 30 parts of paraformaldehyde to 200 parts by weight of methylethylketone. The ketoalcohols, which are preferably purified by distillation in the presence of a high boiling ester, e.g. dibutylphthalate, yield the corresponding unsaturated ketones by dehydration with, e.g. sulphuric, phosphoric or oxalic acid, alkalibisulphates, calcium chloride, quicklime, halogens or anhydrous copper sulphate. In examples : (1) acetone and paraformaldehyde are refluxed with methylalcoholic potash and the product distilled with dibutylphthalate after neutralization ; (2) the product obtained in example (1) is distilled with concentrated phosphoric acid and the crude methylvinylketone freed from acetone by fractional distillation after removing water by heating with acetic anhydride ; (3) methylethylketone is similarly treated with paraformaldehyde and methyl isopropenylketone obtained by dehydrating the product.
GB1171441A 1941-09-12 1941-09-12 Improvements in and relating to the production of unsaturated ketones and their related keto alcohols Expired GB553305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1171441A GB553305A (en) 1941-09-12 1941-09-12 Improvements in and relating to the production of unsaturated ketones and their related keto alcohols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1171441A GB553305A (en) 1941-09-12 1941-09-12 Improvements in and relating to the production of unsaturated ketones and their related keto alcohols

Publications (1)

Publication Number Publication Date
GB553305A true GB553305A (en) 1943-05-17

Family

ID=9991337

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1171441A Expired GB553305A (en) 1941-09-12 1941-09-12 Improvements in and relating to the production of unsaturated ketones and their related keto alcohols

Country Status (1)

Country Link
GB (1) GB553305A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6322642B1 (en) 1998-07-21 2001-11-27 Creusot Loire Industrie Process and steel for the manufacture of a pressure vessel working in the presence hydrogen sulfide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6322642B1 (en) 1998-07-21 2001-11-27 Creusot Loire Industrie Process and steel for the manufacture of a pressure vessel working in the presence hydrogen sulfide

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