ES2170967T3 - Procedimiento para la produccion de 2h-1-benzopiranos. - Google Patents
Procedimiento para la produccion de 2h-1-benzopiranos.Info
- Publication number
- ES2170967T3 ES2170967T3 ES97944779T ES97944779T ES2170967T3 ES 2170967 T3 ES2170967 T3 ES 2170967T3 ES 97944779 T ES97944779 T ES 97944779T ES 97944779 T ES97944779 T ES 97944779T ES 2170967 T3 ES2170967 T3 ES 2170967T3
- Authority
- ES
- Spain
- Prior art keywords
- group
- renting
- general formula
- formula
- hydrogen
- 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
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
- C07D311/70—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6
- C07D311/72—3,4-Dihydro derivatives having in position 2 at least one methyl radical and in position 6 one oxygen atom, e.g. tocopherols
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Saccharide Compounds (AREA)
- Pyrane Compounds (AREA)
Abstract
LA INVENCION SE REFIERE A UN PROCEDIMIENTO DE PRODUCCION DE 2H-1-BENZOPIRANOS DE FORMULA GENERAL (I), DONDE R1 ES HIDROGENO, UN GRUPO ALQUILO (C1-C4); R2 ES HIDROGENO, UN GRUPO ALQUILO (C1-C6) Y R3 ES HIDROGENO, UN GRUPO ALQUILO (C1-C4), UN GRUPO HALOALQUILO (C1-C4), UN GRUPO ALQUENILO (C2-C4), UN GRUPO ALCOXICARBONILO (C1-C4), UN GRUPO ALCOXIMETILO (C1-C4), UN GRUPO ALCANOILO (C1-C4), UN GRUPO ALCOXI (C1-C4), UN GRUPO ALQUILSULFONILO (C1-C4), HALOGENO, AMINO, ALQUILAMINO, DIALQUILAMINO, NITRILO, NITRO O HIDROXILO. DICHO PROCEDIMIENTO SE CARACTERIZA PORQUE, EN UNA PRIMERA FASE UN ALDEHIDO ALIFATICO DE FORMULA GENERAL (II), DONDE R1 Y R2 TIENEN LOS SIGNIFICADOS ANTERIORMENTE INDICADOS, SE TRANSFORMA CON UN ALCOHOL ALIFATICO DE FORMULA R4 OH O HO R4 OH, DONDE R4 ES UN GRUPO ALQUILO (C1-C4) O UN GRUPO ALQUILDIILO (C2-C4), EN PRESENCIA DE UN COMPUESTO DESHIDRATANTE DE FORMULA HC(OR5)3 , DONDE R5 ES UN GRUPO ALQUILO (C1-C4), Y UN CATALIZADOR DE OXIDO DE ALUMINIO/OXIDO DE SILICIO, EN UN ACETAL ALIFATICO DE FORMULA (III). EN ESTA ULTIMA R1 Y R2 TIENEN LOS SIGNIFICADOS INDICADOS ANTERIORMENTE Y R4 , COMO SE DETALLO ANTERIORMENTE, ES UN GRUPO ALQUILO (C1-C4), O BIEN LOS DOS R4 CONJUNTAMENTE FORMAN UN GRUPO ALQUILDIILO (C2-C4) CICLICO, Y ESTE SE COND ENSA A CONTINUACION EN UNA SEGUNDA FASE, CON UN FENOL DE FORMULA GENERAL (IV), DONDE R3 TIENE EL SIGNIFICADO DETALLADO ANTERIORMENTE, EN PRESENCIA DE UNA BASE, EN UN DISOLVENTE ORGANICO, HASTA PRODUCIR EL PRODUCTO FINAL DE FORMULA GENERAL (I).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH198496 | 1996-08-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2170967T3 true ES2170967T3 (es) | 2002-08-16 |
Family
ID=4223194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES97944779T Expired - Lifetime ES2170967T3 (es) | 1996-08-13 | 1997-08-13 | Procedimiento para la produccion de 2h-1-benzopiranos. |
Country Status (21)
| Country | Link |
|---|---|
| EP (1) | EP0882035B1 (es) |
| CN (1) | CN1103768C (es) |
| AP (1) | AP1006A (es) |
| AT (1) | ATE211739T1 (es) |
| AU (1) | AU714918B2 (es) |
| BG (1) | BG63570B1 (es) |
| CO (1) | CO4900048A1 (es) |
| CZ (1) | CZ292668B6 (es) |
| DE (1) | DE69709542T2 (es) |
| DK (1) | DK0882035T3 (es) |
| EA (1) | EA000696B1 (es) |
| ES (1) | ES2170967T3 (es) |
| HK (1) | HK1020438A1 (es) |
| HU (1) | HU223351B1 (es) |
| MX (1) | MX9803775A (es) |
| NZ (1) | NZ330341A (es) |
| PE (1) | PE107298A1 (es) |
| PT (1) | PT882035E (es) |
| SK (1) | SK281933B6 (es) |
| UA (1) | UA49855C2 (es) |
| WO (1) | WO1998006713A1 (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005014586A1 (en) * | 2003-08-08 | 2005-02-17 | Arpida Ag | Novel process for the preparation of 2h-chromenes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW310327B (es) * | 1993-06-18 | 1997-07-11 | Bristol Myers Squibb Co |
-
1997
- 1997-08-13 DK DK97944779T patent/DK0882035T3/da active
- 1997-08-13 HU HU9902584A patent/HU223351B1/hu active IP Right Grant
- 1997-08-13 SK SK612-98A patent/SK281933B6/sk not_active IP Right Cessation
- 1997-08-13 NZ NZ330341A patent/NZ330341A/en not_active IP Right Cessation
- 1997-08-13 ES ES97944779T patent/ES2170967T3/es not_active Expired - Lifetime
- 1997-08-13 CN CN97191398A patent/CN1103768C/zh not_active Expired - Lifetime
- 1997-08-13 WO PCT/EP1997/004569 patent/WO1998006713A1/en active IP Right Grant
- 1997-08-13 CZ CZ19981469A patent/CZ292668B6/cs not_active IP Right Cessation
- 1997-08-13 UA UA98052383A patent/UA49855C2/uk unknown
- 1997-08-13 DE DE69709542T patent/DE69709542T2/de not_active Expired - Lifetime
- 1997-08-13 AP APAP/P/1998/001232A patent/AP1006A/en active
- 1997-08-13 AU AU46179/97A patent/AU714918B2/en not_active Expired
- 1997-08-13 EA EA199800370A patent/EA000696B1/ru not_active IP Right Cessation
- 1997-08-13 AT AT97944779T patent/ATE211739T1/de active
- 1997-08-13 PT PT97944779T patent/PT882035E/pt unknown
- 1997-08-13 EP EP97944779A patent/EP0882035B1/en not_active Expired - Lifetime
- 1997-08-20 PE PE1997000737A patent/PE107298A1/es not_active IP Right Cessation
- 1997-08-22 CO CO97048490A patent/CO4900048A1/es unknown
-
1998
- 1998-05-12 BG BG102442A patent/BG63570B1/bg unknown
- 1998-05-12 MX MX9803775A patent/MX9803775A/es active IP Right Grant
-
1999
- 1999-06-09 HK HK99102507A patent/HK1020438A1/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0882035A1 (en) | 1998-12-09 |
| AU714918B2 (en) | 2000-01-13 |
| CZ146998A3 (cs) | 1998-10-14 |
| AP1006A (en) | 2001-08-29 |
| EA199800370A1 (ru) | 1998-10-29 |
| HU223351B1 (hu) | 2004-06-28 |
| WO1998006713A1 (en) | 1998-02-19 |
| HUP9902584A2 (hu) | 2001-05-28 |
| DE69709542T2 (de) | 2002-08-22 |
| CZ292668B6 (cs) | 2003-11-12 |
| EP0882035B1 (en) | 2002-01-09 |
| BG63570B1 (bg) | 2002-05-31 |
| MX9803775A (es) | 1998-09-30 |
| BG102442A (en) | 1999-04-30 |
| ATE211739T1 (de) | 2002-01-15 |
| HK1020438A1 (en) | 2000-04-20 |
| EA000696B1 (ru) | 2000-02-28 |
| CO4900048A1 (es) | 2000-03-27 |
| NZ330341A (en) | 2000-02-28 |
| CN1103768C (zh) | 2003-03-26 |
| PT882035E (pt) | 2002-06-28 |
| HUP9902584A3 (en) | 2001-06-28 |
| AP9801232A0 (en) | 1998-06-30 |
| PE107298A1 (es) | 1999-03-20 |
| DE69709542D1 (de) | 2002-02-14 |
| SK61298A3 (en) | 1998-12-02 |
| DK0882035T3 (da) | 2002-04-29 |
| CN1205007A (zh) | 1999-01-13 |
| AU4617997A (en) | 1998-03-06 |
| UA49855C2 (uk) | 2002-10-15 |
| SK281933B6 (sk) | 2001-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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