GB1322919A - Manufacture of 3-acyl-or 3-alkoxycarbonyl-5,6-dihydro-4h-pyrans - Google Patents

Manufacture of 3-acyl-or 3-alkoxycarbonyl-5,6-dihydro-4h-pyrans

Info

Publication number
GB1322919A
GB1322919A GB5741970A GB5741970A GB1322919A GB 1322919 A GB1322919 A GB 1322919A GB 5741970 A GB5741970 A GB 5741970A GB 5741970 A GB5741970 A GB 5741970A GB 1322919 A GB1322919 A GB 1322919A
Authority
GB
United Kingdom
Prior art keywords
pyrans
alkoxycarbonyl
dihydro
acyl
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
GB5741970A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1322919A publication Critical patent/GB1322919A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/94—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems condensed with rings other than six-membered or with ring systems containing such rings
    • 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
    • C07D309/16—Heterocyclic compounds containing six-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
    • C07D309/20—Heterocyclic compounds containing six-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 hydrogen atoms and substituted hydrocarbon radicals directly attached to ring carbon atoms
    • C07D309/22—Radicals substituted by oxygen atoms
    • 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
    • C07D309/16—Heterocyclic compounds containing six-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
    • C07D309/28—Heterocyclic compounds containing six-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)
  • Fats And Perfumes (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Pyrane Compounds (AREA)

Abstract

1322919 3-Acyl and 3-alkoxycarbonyl-5,6- dihydro-4H-pyrans BADISCHE ANILIN- & SODA-FABRIK AG 3 Dec 1970 [4 Dec 1969] 57419/70 Heading C2C Novel 3 - acyl - 5,6 - dihydro - 4H - pyrans of the formula wherein R 1 -R 5 are hydrogen or (C 1 -C 40 ) hydrocarbon radicals which may be linked to form 5- to 7-membered rings which may contain one or more oxygen atoms as hetero atoms, as well as 3 - alkoxycarbonyl - 5,6 - dihydro-4H- pyrans, i.e. compounds of the above formula, wherein R 4 is a (C 1 -C 8 ) alkoxy group, are prepared by reacting a 1,1-diacyl-but-3-ene, or 1,acyl-1-alkoxycarbonyl-but-3-ene of the formula with an acid agent (defined) at a temperature of from -100‹ to + 150‹ C.
GB5741970A 1969-12-04 1970-12-03 Manufacture of 3-acyl-or 3-alkoxycarbonyl-5,6-dihydro-4h-pyrans Expired GB1322919A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691960811 DE1960811A1 (en) 1969-12-04 1969-12-04 Process for the preparation of 3-acyl- or 3-alkoxycarbonyl-5,6-dihydro-4-H-pyrans

Publications (1)

Publication Number Publication Date
GB1322919A true GB1322919A (en) 1973-07-11

Family

ID=5752932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5741970A Expired GB1322919A (en) 1969-12-04 1970-12-03 Manufacture of 3-acyl-or 3-alkoxycarbonyl-5,6-dihydro-4h-pyrans

Country Status (5)

Country Link
CH (1) CH556333A (en)
DE (1) DE1960811A1 (en)
FR (1) FR2072617A5 (en)
GB (1) GB1322919A (en)
NL (1) NL7017693A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7608720A (en) * 1975-08-07 1977-02-09 Naarden International Nv PROCESS FOR PREPARING DEODORIZATION PREPARATIONS.

Also Published As

Publication number Publication date
CH556333A (en) 1974-11-29
FR2072617A5 (en) 1971-09-24
NL7017693A (en) 1971-06-08
DE1960811A1 (en) 1971-06-09

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees