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GB1289571A - - Google Patents

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Publication number
GB1289571A
GB1289571A GB1289571DA GB1289571A GB 1289571 A GB1289571 A GB 1289571A GB 1289571D A GB1289571D A GB 1289571DA GB 1289571 A GB1289571 A GB 1289571A
Authority
GB
United Kingdom
Prior art keywords
tetrahydrofurans
tetrahydrofuran
acetylenic
cycloaliphatic
cycloalkyl
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
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 filed Critical
Publication of GB1289571A publication Critical patent/GB1289571A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/04Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
    • C07D307/06Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms
    • C07D307/08Preparation of tetrahydrofuran

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1289571 Tetrahydrofurans ; acetylenic glycols GAF CORP 16 June 1970 [18 June 1969] 29203/70 Heading C2C Acetylenic-1,4-glycols of the formula or formula in which R is hydrogen, C 1 -C 13 alkyl, C 3 -C 8 cycloalkyl, aryl or aralkyl and R 1 and R 2 are C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, phenyl or benzyl are converted to tetrahydrofurans or the corresponding 2,5 - disubstituted tetrahydrofurans by heating a solution of the glycol with hydrogen in the presence of a hydrogenating- dehydrating catalyst consisting of palladium, ruthenium, rhodium, cobalt or nickel impregnated on a carrier having a surface area of at least 150 square metres per gram at a temperature of from 175‹ to 400‹ C. and a pressure of at least 100 p.s.i.g. Suitable solvents for the starting glycol are, for example, tetrahydrofuran, 2,5-disubstituted tetrahydrofurans, alcohols and water. Examples are given of the preparation of tetrahydrofuran and 2,2,5,5- tetramethyl-tetrahydrofuran. The acetylenic glycols used as starting materials may be prepared by reacting acetylene with (a) an excess of an aliphatic, cycloaliphatic or aromatic aldehyde in the presence of a solvent and a copper acetylide or copper-bismuth acetylide or (b) with an aliphatic, cycloaliphatic or aromatic ketone in the presence of an alkaline catalyst. Lists of suitable ketones and aldehydes are given.
GB1289571D 1969-06-18 1970-06-16 Expired GB1289571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83452969A 1969-06-18 1969-06-18

Publications (1)

Publication Number Publication Date
GB1289571A true GB1289571A (en) 1972-09-20

Family

ID=25267137

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1289571D Expired GB1289571A (en) 1969-06-18 1970-06-16

Country Status (4)

Country Link
BE (1) BE752104A (en)
DE (1) DE2029557A1 (en)
FR (1) FR2052648A5 (en)
GB (1) GB1289571A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31104E (en) 1973-01-31 1982-12-14 Alloy Surfaces Company, Inc. Catalytic structure
FR2936803A1 (en) * 2008-10-06 2010-04-09 Arkema France BLOCK COPOLYMER DERIVED FROM RENEWABLE MATERIALS AND METHOD FOR MANUFACTURING SUCH A BLOCK COPOLYMER.
WO2012095709A1 (en) * 2011-01-12 2012-07-19 Basf Se Process for the hydrogenation of 1,4-butynediol to tetrahydrofuran in the gas phase
JP2019532094A (en) * 2016-08-19 2019-11-07 ニットー ベルジャム エヌヴイ Production of TMTHF
CN113173894A (en) * 2021-06-04 2021-07-27 青岛化赫医药科技有限公司 Method for continuously synthesizing tetrahydrofuran-3-ketone

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007047018B4 (en) 2007-10-01 2009-05-20 Elmech Service Gmbh Device for moving and transporting
WO2012095375A1 (en) 2011-01-12 2012-07-19 Basf Se METHOD FOR THE HYDROGENATION OF 1,4-BUTYNEDIOL IN THE GASEOUS PHASE TO FORM MIXTURES THAT CONTAIN TETRAHYDROFURANE, 1,4-BUTANEDIOL AND γ-BUTYROLACTONE

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31104E (en) 1973-01-31 1982-12-14 Alloy Surfaces Company, Inc. Catalytic structure
FR2936803A1 (en) * 2008-10-06 2010-04-09 Arkema France BLOCK COPOLYMER DERIVED FROM RENEWABLE MATERIALS AND METHOD FOR MANUFACTURING SUCH A BLOCK COPOLYMER.
WO2010040944A3 (en) * 2008-10-06 2010-06-10 Arkema France Block copolymer derived from renewable materials and method for making such a block copolymer
US8231950B2 (en) 2008-10-06 2012-07-31 Arkema France Block copolymer derived from renewable materials and method for making such block copolymer
EP3196226A1 (en) * 2008-10-06 2017-07-26 Arkema France Block copolymer obtained from renewable materials and method for manufacturing such a block copolymer
EP3660076A1 (en) * 2008-10-06 2020-06-03 Arkema France Block copolymer obtained from renewable materials and method for manufacturing such a block copolymer
WO2012095709A1 (en) * 2011-01-12 2012-07-19 Basf Se Process for the hydrogenation of 1,4-butynediol to tetrahydrofuran in the gas phase
JP2019532094A (en) * 2016-08-19 2019-11-07 ニットー ベルジャム エヌヴイ Production of TMTHF
US10738021B2 (en) 2016-08-19 2020-08-11 Nitto Belgium B.V. Preparation of TMTHF
CN113173894A (en) * 2021-06-04 2021-07-27 青岛化赫医药科技有限公司 Method for continuously synthesizing tetrahydrofuran-3-ketone
CN113173894B (en) * 2021-06-04 2022-08-02 上海巽田科技股份有限公司 Method for continuously synthesizing tetrahydrofuran-3-ketone

Also Published As

Publication number Publication date
DE2029557A1 (en) 1970-12-23
FR2052648A5 (en) 1971-04-09
BE752104A (en) 1970-12-01

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Legal Events

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