GB2009747A - Tetrahydropyran Compounds - Google Patents

Tetrahydropyran Compounds

Info

Publication number
GB2009747A
GB2009747A GB7841917A GB7841917A GB2009747A GB 2009747 A GB2009747 A GB 2009747A GB 7841917 A GB7841917 A GB 7841917A GB 7841917 A GB7841917 A GB 7841917A GB 2009747 A GB2009747 A GB 2009747A
Authority
GB
United Kingdom
Prior art keywords
compounds
tetrahydropyran
alkyl
acyloxy
halogen
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.)
Granted
Application number
GB7841917A
Other versions
GB2009747B (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.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical 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 JP14960577A external-priority patent/JPS5481273A/en
Priority claimed from JP5931078A external-priority patent/JPS54151978A/en
Application filed by Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Publication of GB2009747A publication Critical patent/GB2009747A/en
Application granted granted Critical
Publication of GB2009747B publication Critical patent/GB2009747B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C07D309/30—Oxygen atoms, e.g. delta-lactones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Pyrane Compounds (AREA)

Abstract

A novel class of tetrahydropyran- 5-one compounds are provided which are 2-alkoxy- or 2-acyloxy-3,4-di- halogeno-6-alkyl tetrahydropyran-5- ones expressed by the general formula <IMAGE> where R<1> is an alkyl group, R<2> is an alkyl or an acyloxy group and X is a halogen atom. The compounds are synthesized by the reaction of a 2- furyl carbinol compound with a halogen in the presence of an alcohol or a carboxylic acid. The compounds are intermediate; for the synthetic preparation of compounds including maltol.
GB7841917A 1977-12-12 1978-10-25 Tetrahydropyran compounds Expired GB2009747B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP14960577A JPS5481273A (en) 1977-12-12 1977-12-12 Preparation of pyranone halide
JP5931078A JPS54151978A (en) 1978-05-18 1978-05-18 Tetrahydropyran-5-ones

Publications (2)

Publication Number Publication Date
GB2009747A true GB2009747A (en) 1979-06-20
GB2009747B GB2009747B (en) 1982-05-06

Family

ID=26400361

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7841917A Expired GB2009747B (en) 1977-12-12 1978-10-25 Tetrahydropyran compounds

Country Status (3)

Country Link
DE (1) DE2845833A1 (en)
GB (1) GB2009747B (en)
NL (1) NL7810596A (en)

Also Published As

Publication number Publication date
DE2845833A1 (en) 1979-06-13
GB2009747B (en) 1982-05-06
NL7810596A (en) 1979-06-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee