ES8505984A1 - Procedimiento de preparar 2,9-dihidrofuranos - Google Patents

Procedimiento de preparar 2,9-dihidrofuranos

Info

Publication number
ES8505984A1
ES8505984A1 ES533691A ES533691A ES8505984A1 ES 8505984 A1 ES8505984 A1 ES 8505984A1 ES 533691 A ES533691 A ES 533691A ES 533691 A ES533691 A ES 533691A ES 8505984 A1 ES8505984 A1 ES 8505984A1
Authority
ES
Spain
Prior art keywords
preparation
dihydrofuran
useful
compounds
aroma chemicals
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
ES533691A
Other languages
English (en)
Other versions
ES533691A0 (es
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.)
Millennium Petrochemicals Inc
Original Assignee
National Destillers and Chemical Corp
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 US06/503,952 external-priority patent/US4487946A/en
Priority claimed from US06/503,974 external-priority patent/US4515978A/en
Application filed by National Destillers and Chemical Corp filed Critical National Destillers and Chemical Corp
Publication of ES8505984A1 publication Critical patent/ES8505984A1/es
Publication of ES533691A0 publication Critical patent/ES533691A0/es
Granted 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
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B9/00—Essential oils; Perfumes
    • C11B9/0069—Heterocyclic compounds
    • C11B9/0073—Heterocyclic compounds containing only O or S as heteroatoms
    • C11B9/0076—Heterocyclic compounds containing only O or S as heteroatoms the hetero rings containing less than six atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Fats And Perfumes (AREA)
  • Cosmetics (AREA)

Abstract

PROCEDIMIENTO DE PREPARAR 2,3-DIHIDROFURANOS.COMPRENDE CALENTAR LA CICLOPROPILCETONA DE FORMULA (II) QUE ESTA ESENCIALMENTE LIBRE DE AGUA Y DE CAUSTICO, A UNA TEMPERATURA ENTRE 60 Y 200JC Y EN PRESENCIA DE 0,5 A 20 EN PESO DE UN CATALIZADOR ONIO, BASADO EN EL PESO DE LA CICLOPROPILCETONA, PARA EFECTUAR LA ISOMERIZACION Y OBTENER 2,3-DIHIDROFURANOS DE FORMULA (I) DONDE, R Y R1 SON RADICALES HIDROCARBURO DE C 1 A 24 Y X ES UN RADICAL CARBOXILATO, NITRILO, AMIDA O SULFONILO.
ES533691A 1983-06-13 1984-06-13 Procedimiento de preparar 2,9-dihidrofuranos Granted ES533691A0 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/503,952 US4487946A (en) 1983-06-13 1983-06-13 Process for the isomerization of cyclopropyl ketones to 2,3-dihydrofurans
US06/503,974 US4515978A (en) 1983-06-13 1983-06-13 Dihydrofurans

Publications (2)

Publication Number Publication Date
ES8505984A1 true ES8505984A1 (es) 1985-07-01
ES533691A0 ES533691A0 (es) 1985-07-01

Family

ID=27054676

Family Applications (1)

Application Number Title Priority Date Filing Date
ES533691A Granted ES533691A0 (es) 1983-06-13 1984-06-13 Procedimiento de preparar 2,9-dihidrofuranos

Country Status (8)

Country Link
EP (1) EP0128584B1 (es)
JP (1) JPH0608285A (es)
AU (1) AU567946B2 (es)
CA (1) CA1238332A (es)
ES (1) ES533691A0 (es)
IE (1) IE57582B1 (es)
IL (1) IL72084A (es)
MX (1) MX160638A (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681703A (en) * 1983-06-13 1987-07-21 National Distillers And Chemical Corporation Alkyl substituted-2,3-dihydrofuran fragrance compositions
US5103026A (en) * 1990-04-23 1992-04-07 Henkel Corporation Process for preparing furan compositions
JP3960317B2 (ja) * 2004-03-03 2007-08-15 日産自動車株式会社 車両用運転操作補助装置および車両用運転操作補助装置を備えた車両

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA947310A (en) * 1970-08-29 1974-05-14 Seiji Wakayama 2-(1'-hydroxymethyl-ethyl)-5-methyl-5-vinyl-tetrahydrofuran
US4198341A (en) * 1977-09-08 1980-04-15 Dynamit Nobel Aktiengesellschaft 2,5,5-Trimethyl-3-carbalkoxy-4(β,β-dihalovinyl)-4,5-dihydrofurans
US4252739A (en) * 1979-08-20 1981-02-24 Emery Industries, Inc. Process for the preparation of vinylcyclopropane derivatives

Also Published As

Publication number Publication date
AU2933184A (en) 1984-12-20
IE57582B1 (en) 1993-01-13
EP0128584B1 (en) 1988-10-26
IL72084A (en) 1988-11-15
IL72084A0 (en) 1984-10-31
JPH0608285A (en) 1985-01-17
EP0128584A1 (en) 1984-12-19
ES533691A0 (es) 1985-07-01
JPH0564146B2 (es) 1993-09-14
IE841471L (en) 1984-12-13
AU567946B2 (en) 1987-12-10
CA1238332A (en) 1988-06-21
MX160638A (es) 1990-03-29

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970401