GB858626A - Production of 2,3-dihydropyran - Google Patents

Production of 2,3-dihydropyran

Info

Publication number
GB858626A
GB858626A GB35270/59A GB3527059A GB858626A GB 858626 A GB858626 A GB 858626A GB 35270/59 A GB35270/59 A GB 35270/59A GB 3527059 A GB3527059 A GB 3527059A GB 858626 A GB858626 A GB 858626A
Authority
GB
United Kingdom
Prior art keywords
dihydropyran
recycled
weight
carrier gas
tetrahydrofurfuryl alcohol
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
GB35270/59A
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.)
Quaker Oats Co
Original Assignee
Quaker Oats Co
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 Quaker Oats Co filed Critical Quaker Oats Co
Publication of GB858626A publication Critical patent/GB858626A/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
    • C07D309/18—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 containing only hydrogen and carbon atoms in addition to the ring hetero atom

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)

Abstract

2.3-Dihydropyran is produced by contacting tetrahydrofurfuryl alcohol in the vapour phase at a temperature of 250-350 DEG C. with a catalyst comprising from 85 to 95% by weight of titanium dioxide and from 15% to 5% by weight of aluminium oxide. In a preferred method of carrying out the process the tetahydro furfuryl alcohol is vaporised in a vaporisation zone, entrained in a carrier gas and passed to the reaction zone; the product vapours are condensed, the carrier gas is recycled and dihydropyran is separated from unreacted tetrahydrofurfuryl alcohol, which is recycled. The preferred carrier gases are nitrogen and hydrogen.
GB35270/59A 1953-10-28 1959-10-19 Production of 2,3-dihydropyran Expired GB858626A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US858626XA 1953-10-28 1953-10-28

Publications (1)

Publication Number Publication Date
GB858626A true GB858626A (en) 1961-01-11

Family

ID=22194457

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35270/59A Expired GB858626A (en) 1953-10-28 1959-10-19 Production of 2,3-dihydropyran

Country Status (1)

Country Link
GB (1) GB858626A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691337A1 (en) * 1994-07-07 1996-01-10 Basf Aktiengesellschaft Process for the preparation of 3,4-dihydro-2H-pyran
WO2002012219A1 (en) * 2000-08-03 2002-02-14 Basf Aktiengesellschaft Method for producing 3,4-dihydro-2h-pyran

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691337A1 (en) * 1994-07-07 1996-01-10 Basf Aktiengesellschaft Process for the preparation of 3,4-dihydro-2H-pyran
WO2002012219A1 (en) * 2000-08-03 2002-02-14 Basf Aktiengesellschaft Method for producing 3,4-dihydro-2h-pyran

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