GB1432630A - Preparation of substituted ketones - Google Patents

Preparation of substituted ketones

Info

Publication number
GB1432630A
GB1432630A GB2928075A GB2928075A GB1432630A GB 1432630 A GB1432630 A GB 1432630A GB 2928075 A GB2928075 A GB 2928075A GB 2928075 A GB2928075 A GB 2928075A GB 1432630 A GB1432630 A GB 1432630A
Authority
GB
United Kingdom
Prior art keywords
ketone
methyl
hepten
nov
alkali metal
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
GB2928075A
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.)
Kuraray Co Ltd
Original Assignee
Kuraray Co 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
Priority claimed from JP11598972A external-priority patent/JPS4975515A/ja
Priority claimed from JP48089862A external-priority patent/JPS5761008B2/ja
Application filed by Kuraray Co Ltd filed Critical Kuraray Co Ltd
Publication of GB1432630A publication Critical patent/GB1432630A/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

Landscapes

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

Abstract

1432630 Substituting ketones KURARAY CO Ltd 15 Nov 1973 [17 Nov 1972 9 Aug 1973] 29280/75 Divided out of 1432629 Heading C2C A substituted ketone is prepared by reacting a ketone having a replaceable hydrogen atom on an α-carbon atom, said ketone being an alkyl ketone, an unsaturated ketone, a cycloaliphatic ketone, camphor, acetophenone or phenylacetone, with an organic halide in the presence of an alkali metal hydroxide and, as catalyst, a phosphonium salt of formula where R 1 , R 2 , R 3 and R 4 are each alkyl or aralkyl and X- is an anion. 2À5-10 moles of water are preferably added for every mole of organic halide. The alkali metal hydroxide may be added in solid form or as aqueous solution. Temperatures of 0-150‹ C. are mentioned. Examples prepare 6 - methyl - 4 - hepten- 2-one, geranyl acetone, 3-methyl-hex-5-en-2- one, 6 - methyl - 3 - isopropopenyl - 5 - hepten- 2 - one and 6 - methyl - 3 - isopropylidene- 5-hepten-2-one.
GB2928075A 1972-11-17 1973-11-15 Preparation of substituted ketones Expired GB1432630A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11598972A JPS4975515A (en) 1972-11-17 1972-11-17
JP48089862A JPS5761008B2 (en) 1973-08-09 1973-08-09

Publications (1)

Publication Number Publication Date
GB1432630A true GB1432630A (en) 1976-04-22

Family

ID=26431259

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2928075A Expired GB1432630A (en) 1972-11-17 1973-11-15 Preparation of substituted ketones

Country Status (1)

Country Link
GB (1) GB1432630A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19931114