ES477048A1 - Procedimiento para la preparacion de 2,5,5-trimetil-3-car- balcoxi-4-(beta, beta-dihalogenovinil)-4,5-dihidrofuranos. - Google Patents

Procedimiento para la preparacion de 2,5,5-trimetil-3-car- balcoxi-4-(beta, beta-dihalogenovinil)-4,5-dihidrofuranos.

Info

Publication number
ES477048A1
ES477048A1 ES477048A ES477048A ES477048A1 ES 477048 A1 ES477048 A1 ES 477048A1 ES 477048 A ES477048 A ES 477048A ES 477048 A ES477048 A ES 477048A ES 477048 A1 ES477048 A1 ES 477048A1
Authority
ES
Spain
Prior art keywords
halovinyl
methyl
prepd
carboxylic acid
formula
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
ES477048A
Other languages
English (en)
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel 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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of ES477048A1 publication Critical patent/ES477048A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member 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

Landscapes

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

Abstract

Procedimiento para la preparación de 2,5,5-trimetil-3-carbalcoxi-4-(beta, beta- dihalogenovinil)-4,5-dihidrofuranos de la fórmula general I **fórmula ** en la que R1 es un radical alcohilo de cadena recta o ramificado y X significa Cl o Br, caracterizado porque se somete a una reacción de transposición térmica un 2,4,4-trimetil-3- carbalcoxi-5-(beta, beta-dihalogenovinil)- 4,5-dihidrofurano de la fórmula general II **fórmula** en la que R1 es un radical alcohilo de cadena recta o ramificado y X significa Cl o Br , mediante calentamiento del mismo a temperaturas superiores a 200ºC.
ES477048A 1978-03-23 1979-01-22 Procedimiento para la preparacion de 2,5,5-trimetil-3-car- balcoxi-4-(beta, beta-dihalogenovinil)-4,5-dihidrofuranos. Expired ES477048A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782812673 DE2812673A1 (de) 1978-03-23 1978-03-23 2,5,5-trimethyl-3-carbalkoxy-4-(beta, beta-dihalogenvinyl)-4,5-dihydrofurane

Publications (1)

Publication Number Publication Date
ES477048A1 true ES477048A1 (es) 1980-01-01

Family

ID=6035237

Family Applications (1)

Application Number Title Priority Date Filing Date
ES477048A Expired ES477048A1 (es) 1978-03-23 1979-01-22 Procedimiento para la preparacion de 2,5,5-trimetil-3-car- balcoxi-4-(beta, beta-dihalogenovinil)-4,5-dihidrofuranos.

Country Status (3)

Country Link
DE (1) DE2812673A1 (es)
ES (1) ES477048A1 (es)
FR (1) FR2420531A1 (es)

Also Published As

Publication number Publication date
FR2420531A1 (fr) 1979-10-19
DE2812673A1 (de) 1979-09-27

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