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GB1108977A - Novel pentanone derivatives - Google Patents

Novel pentanone derivatives

Info

Publication number
GB1108977A
GB1108977A GB43188/67A GB4318867A GB1108977A GB 1108977 A GB1108977 A GB 1108977A GB 43188/67 A GB43188/67 A GB 43188/67A GB 4318867 A GB4318867 A GB 4318867A GB 1108977 A GB1108977 A GB 1108977A
Authority
GB
United Kingdom
Prior art keywords
pentanone
ethyl
novel
dioxolane
bromo
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
GB43188/67A
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of GB1108977A publication Critical patent/GB1108977A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
    • C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
    • C07D317/14—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D317/16—Radicals substituted by halogen atoms or nitro radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
    • C07D309/08—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D309/10—Oxygen atoms
    • C07D309/12—Oxygen atoms only hydrogen atoms and one oxygen atom directly attached to ring carbon atoms, e.g. tetrahydropyranyl ethers
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2603/00—Systems containing at least three condensed rings
    • C07C2603/02—Ortho- or ortho- and peri-condensed systems
    • C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
    • C07C2603/06—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members
    • C07C2603/10—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members containing five-membered rings
    • C07C2603/12—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members containing five-membered rings only one five-membered ring
    • C07C2603/16—Benz[e]indenes; Hydrogenated benz[e]indenes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Catalysts (AREA)

Abstract

Novel compounds of the formula CH3CH2-Q-CH2CH2Br (wherein Q is alkylenedioxymethylene of up to 7 carbon atoms) are prepared from 1-bromo-pentanone-(3) by transketalization or, for 2-(2-bromoethyl)2-ethyl-1,3-dioxolane, by forming the cyclic ethylene ketal of an alkyl or hydroxyalkyl alpha-propionyl acetate, reducing this and treating the so-formed 2 - (2 - hydroxyethyl) - 2 - ethyl-1,3-dioxolane with PBr3. 1-Bromo-pentanone-(3) is prepared from ethyl vinyl ketone and HBr or from propionyl bromide and ethene.
GB43188/67A 1965-10-13 1966-10-11 Novel pentanone derivatives Expired GB1108977A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49567265A 1965-10-13 1965-10-13
US54467766A 1966-04-25 1966-04-25

Publications (1)

Publication Number Publication Date
GB1108977A true GB1108977A (en) 1968-04-10

Family

ID=27051843

Family Applications (4)

Application Number Title Priority Date Filing Date
GB43189/67A Expired GB1108978A (en) 1965-10-13 1966-10-11 A process for the preparation of tetrahydro-indane derivatives and certain novel tetrahydro-indane derivatives perse
GB43188/67A Expired GB1108977A (en) 1965-10-13 1966-10-11 Novel pentanone derivatives
GB45453/66A Expired GB1108976A (en) 1965-10-13 1966-10-11 A process for the manufacture of benz[e]idenes
GB43190/67A Expired GB1108979A (en) 1965-10-13 1966-10-11 Novel hexahydro-idane derivatives

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB43189/67A Expired GB1108978A (en) 1965-10-13 1966-10-11 A process for the preparation of tetrahydro-indane derivatives and certain novel tetrahydro-indane derivatives perse

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB45453/66A Expired GB1108976A (en) 1965-10-13 1966-10-11 A process for the manufacture of benz[e]idenes
GB43190/67A Expired GB1108979A (en) 1965-10-13 1966-10-11 Novel hexahydro-idane derivatives

Country Status (11)

Country Link
JP (1) JPS5017471B1 (en)
AT (1) AT278767B (en)
BE (1) BE687996A (en)
BR (1) BR6683552D0 (en)
CH (2) CH530360A (en)
ES (1) ES332168A1 (en)
FR (1) FR1510878A (en)
GB (4) GB1108978A (en)
IL (1) IL26592A (en)
NL (1) NL6614414A (en)
SE (1) SE331092B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975440A (en) * 1970-01-21 1976-08-17 Hoffmann-La Roche Inc. Asymmetric synthesis of organic compounds
CN114345366B (en) * 2022-01-14 2023-05-30 万华化学集团股份有限公司 Preparation method of 3-methoxy-4-hydroxymandelic acid oxidation catalyst

Also Published As

Publication number Publication date
CH530360A (en) 1972-11-15
GB1108976A (en) 1968-04-10
SE331092B (en) 1970-12-14
NL6614414A (en) 1967-04-14
BR6683552D0 (en) 1973-12-04
CH525851A (en) 1972-07-31
JPS5017471B1 (en) 1975-06-20
BE687996A (en) 1967-04-10
DE1568792B2 (en) 1975-10-09
GB1108978A (en) 1968-04-10
FR1510878A (en) 1968-01-26
GB1108979A (en) 1968-04-10
AT278767B (en) 1970-02-10
DE1568792A1 (en) 1970-07-09
ES332168A1 (en) 1967-07-16
IL26592A (en) 1970-12-24

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