ES2059921T3 - Procedimiento para la fabricacion de 2,5-dihidrofuranos. - Google Patents
Procedimiento para la fabricacion de 2,5-dihidrofuranos.Info
- Publication number
- ES2059921T3 ES2059921T3 ES90114340T ES90114340T ES2059921T3 ES 2059921 T3 ES2059921 T3 ES 2059921T3 ES 90114340 T ES90114340 T ES 90114340T ES 90114340 T ES90114340 T ES 90114340T ES 2059921 T3 ES2059921 T3 ES 2059921T3
- Authority
- ES
- Spain
- Prior art keywords
- dihydrofurans
- general formula
- preparation
- image
- rearrangement
- 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 - Lifetime
Links
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
- C07D307/26—Heterocyclic compounds containing five-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
- C07D307/28—Heterocyclic compounds containing five-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 only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Epoxy Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Furan Compounds (AREA)
- Saccharide Compounds (AREA)
Abstract
EL INVENTO SE REFIERE A UN PROCEDIMIENTO; QUE SE EMPLEA PARA PRODUCIR 2,5 DIHIDROFORANENO, DE FORMULA (I); CONSISTE EN TRANSPONER CATALITICAMENTE EL 3,4 ULA (II) Y SE CARACTERIZA PORQUE LA TRANSPOSICION SE REALIZA CON CATALIZADOR QUE ABARCA LOS COMPONENTES A, B Y C Y A UNA TEMPERATURA ENTRE 60 LINO, UN HALOGENURO DE ONIUM; B UN SOLVENTE ORGANICO PARA EL COMPONENTE A; C UN ACIDO DE LEWIS O IODO ELEMENTAL Y R1, R (AL CUADRADO) , R3, R4, R5 Y R6 IGUALES O DIFERENTES HIDROGENO O GRUPOS ALQUILOS DE C1 A 4.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3926147A DE3926147A1 (de) | 1989-08-08 | 1989-08-08 | Verfahren zur herstellung von 2,5-dihydrofuranen |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2059921T3 true ES2059921T3 (es) | 1994-11-16 |
ES2059921T5 ES2059921T5 (es) | 2002-04-01 |
Family
ID=6386703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90114340T Expired - Lifetime ES2059921T5 (es) | 1989-08-08 | 1990-07-26 | Procedimiento para la obtencion de 2,5-dihidrofuranos. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5034545A (es) |
EP (1) | EP0412366B2 (es) |
JP (1) | JP2807067B2 (es) |
AT (1) | ATE112274T1 (es) |
DE (2) | DE3926147A1 (es) |
ES (1) | ES2059921T5 (es) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5082956A (en) * | 1990-03-08 | 1992-01-21 | Eastman Kodak Company | Isomerization of epoxyalkenes to 2,5-dihydrofurans |
US6201138B1 (en) * | 1990-03-08 | 2001-03-13 | Eastman Chemical Company | Isomerization of epoxyalkenes to 2,5-dihydrofurans |
US5315019A (en) * | 1991-11-19 | 1994-05-24 | Eastman Chemical Company | Continuous process for the manufacture of 2,5-dihydrofurans from γ, δ-epoxybutenes |
US5238889A (en) * | 1992-08-10 | 1993-08-24 | Eastman Kodak Company | Process for the separation of oligomeric materials from a catalyst mixture |
DE4241942A1 (de) * | 1992-12-11 | 1994-06-16 | Basf Ag | Verfahren zur Herstellung von 3,4-Epoxy-1-buten |
DE4339269A1 (de) * | 1993-11-18 | 1995-05-24 | Basf Ag | Verfahren zur Herstellung von gamma-Butyrolacton |
DE4422671A1 (de) | 1994-06-30 | 1996-01-04 | Basf Ag | Verfahren zur Herstellung von 2,5-Dihydrofuran |
DE4424219A1 (de) * | 1994-07-09 | 1996-01-11 | Basf Ag | Verfahren zur Herstellung von 2,5-Dihydrofuran |
US5466832A (en) * | 1995-02-13 | 1995-11-14 | Eastman Chemical Company | Process for the manufacture of 2,5-dihydrofurans from γ, δ-epoxybutenes |
US5591874A (en) * | 1995-09-29 | 1997-01-07 | Eastman Chemical Company | Process for the preparation of 2,5-dihydrofuran compounds |
DE19539331A1 (de) * | 1995-10-23 | 1997-04-24 | Basf Ag | Verfahren zur Abtrennung von oligomeren Nebenprodukten von einem Isomerisierungskatalysator |
US6335455B1 (en) * | 1998-01-12 | 2002-01-01 | Eastman Chemical Company | Process for the production of 2,5-dihydrofuran |
DE60030056T2 (de) * | 1999-09-21 | 2007-02-15 | Nippon Shokubai Co., Ltd. | Katalysator für die Herstellung von Epoxiden und Verfahren für die Bereitung derselben und die Herstellung von Epoxiden |
GB0405723D0 (en) * | 2004-03-15 | 2004-04-21 | Givauden Sa | Organic compounds |
WO2007108999A2 (en) * | 2006-03-17 | 2007-09-27 | Cornell University | Production of 2,5-dihydrofurans and analogous compounds |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3812158A (en) * | 1970-12-17 | 1974-05-21 | Petro Tex Chem Corp | Preparation of dihydrofuran from 3,4-epoxy-1-butene,3,4-dihydroxy-1-butene,or 1,4-dihydroxy-2-butene |
US3932468A (en) * | 1974-02-08 | 1976-01-13 | Chevron Research Company | Dihydrofuran preparation |
US3996248A (en) * | 1975-11-17 | 1976-12-07 | Chevron Research Company | Preparation of 2,5-dihydrofurans from butadiene monoxides |
-
1989
- 1989-08-08 DE DE3926147A patent/DE3926147A1/de not_active Withdrawn
-
1990
- 1990-05-23 US US07/528,048 patent/US5034545A/en not_active Expired - Lifetime
- 1990-07-26 ES ES90114340T patent/ES2059921T5/es not_active Expired - Lifetime
- 1990-07-26 DE DE59007323T patent/DE59007323D1/de not_active Expired - Lifetime
- 1990-07-26 AT AT90114340T patent/ATE112274T1/de not_active IP Right Cessation
- 1990-07-26 EP EP90114340A patent/EP0412366B2/de not_active Expired - Lifetime
- 1990-08-07 JP JP2207706A patent/JP2807067B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0412366B1 (de) | 1994-09-28 |
ES2059921T5 (es) | 2002-04-01 |
EP0412366A1 (de) | 1991-02-13 |
JP2807067B2 (ja) | 1998-09-30 |
DE59007323D1 (de) | 1994-11-03 |
ATE112274T1 (de) | 1994-10-15 |
US5034545A (en) | 1991-07-23 |
EP0412366B2 (de) | 2001-10-31 |
DE3926147A1 (de) | 1991-02-14 |
JPH0377877A (ja) | 1991-04-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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