GB1289571A – – Google Patents
GB1289571A – – Google Patents
Info
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
1969-06-18
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.)
1969-06-18
Filing date
1970-06-16
Publication date
1972-09-20
1970-06-16
Application filed
filed
Critical
1972-09-20
Publication of GB1289571A
publication
Critical
patent/GB1289571A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
C07D307/04—Heterocyclic 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
C07D307/06—Heterocyclic 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
C07D307/08—Preparation of tetrahydrofuran
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
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
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
1970
1970-06-16
DE
DE19702029557
patent/DE2029557A1/de
active
Pending
1970-06-16
FR
FR7022078A
patent/FR2052648A5/fr
not_active
Expired
1970-06-16
GB
GB1289571D
patent/GB1289571A/en
not_active
Expired
1970-06-17
BE
BE752104D
patent/BE752104A/en
unknown
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.
WO2010040944A2
(en)
*
2008-10-06
2010-04-15
Arkema France
Block copolymer derived from renewable materials and method for making 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
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
1973-01-31
PS
Patent sealed
1976-01-14
PLNP
Patent lapsed through nonpayment of renewal fees
