FR2358407A1 - Procede pour la preparation de derives de thiophene - Google Patents
Procede pour la preparation de derives de thiopheneInfo
- Publication number
- FR2358407A1 FR2358407A1 FR7721148A FR7721148A FR2358407A1 FR 2358407 A1 FR2358407 A1 FR 2358407A1 FR 7721148 A FR7721148 A FR 7721148A FR 7721148 A FR7721148 A FR 7721148A FR 2358407 A1 FR2358407 A1 FR 2358407A1
- Authority
- FR
- France
- Prior art keywords
- biotin
- preparation
- thiophene derivatives
- hydrogenation
- catalytic
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D495/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
- C07D495/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
- C07D495/04—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
Linvention concerne la préparation de biotine. L'invention fournit un moyen d'accomplir l'hydrogénation nécessaire d'un précurseur de biotine sans rencontrer les problèmes qui se posent, c'est-à-dire l'empoisonnement catalytique lorsque des moyens de réduction catalytique sont employés, en diacylant ces précurseurs avant l'hydrogénation. La biotine (vitamine H) joue un rôle nutritif essentiel dans diverses réactions de fixation de CO2 . En outre, la biotine remplit une importante fonction comme facteur de croissance chez la volaille.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US70415776A | 1976-07-12 | 1976-07-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2358407A1 true FR2358407A1 (fr) | 1978-02-10 |
FR2358407B1 FR2358407B1 (fr) | 1981-07-03 |
Family
ID=24828321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7721148A Granted FR2358407A1 (fr) | 1976-07-12 | 1977-07-08 | Procede pour la preparation de derives de thiophene |
Country Status (10)
Country | Link |
---|---|
US (1) | US4130712A (fr) |
JP (1) | JPS539790A (fr) |
AT (1) | AT368503B (fr) |
BE (1) | BE856676A (fr) |
CH (1) | CH629495A5 (fr) |
DE (1) | DE2730341A1 (fr) |
FR (1) | FR2358407A1 (fr) |
GB (2) | GB1582467A (fr) |
IT (1) | IT1143742B (fr) |
NL (1) | NL7707737A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0633263A2 (fr) * | 1993-07-08 | 1995-01-11 | Sumitomo Chemical Company, Limited | Procédé pour la préparation de dérivés de thiophene |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070278453A1 (en) * | 2006-06-02 | 2007-12-06 | Steffen Zahn | Electrically conductive polymers and method of making electrically conductive polymers |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2502422A (en) * | 1945-02-09 | 1950-04-04 | Parke Davis & Co | 2'-keto-3, 4-imidazolido-2-omega-substituted alkyl thiophenes and process for obtaining same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2487051A (en) * | 1945-12-15 | 1949-11-08 | Merck & Co Inc | Biotin intermediate and hydrogenating thiophenes |
US4054740A (en) * | 1974-12-24 | 1977-10-18 | Hoffmann-La Roche Inc. | Hydroxybiotin |
-
1977
- 1977-06-17 US US05/807,760 patent/US4130712A/en not_active Expired - Lifetime
- 1977-06-30 CH CH806277A patent/CH629495A5/de not_active IP Right Cessation
- 1977-07-05 DE DE19772730341 patent/DE2730341A1/de not_active Withdrawn
- 1977-07-08 FR FR7721148A patent/FR2358407A1/fr active Granted
- 1977-07-11 GB GB50504/77A patent/GB1582467A/en not_active Expired
- 1977-07-11 GB GB29005/77A patent/GB1582466A/en not_active Expired
- 1977-07-11 JP JP8210177A patent/JPS539790A/ja active Pending
- 1977-07-11 AT AT0495277A patent/AT368503B/de not_active IP Right Cessation
- 1977-07-11 BE BE179231A patent/BE856676A/fr unknown
- 1977-07-12 IT IT25635/77A patent/IT1143742B/it active
- 1977-07-12 NL NL7707737A patent/NL7707737A/xx not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2502422A (en) * | 1945-02-09 | 1950-04-04 | Parke Davis & Co | 2'-keto-3, 4-imidazolido-2-omega-substituted alkyl thiophenes and process for obtaining same |
Non-Patent Citations (1)
Title |
---|
CA1975 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0633263A2 (fr) * | 1993-07-08 | 1995-01-11 | Sumitomo Chemical Company, Limited | Procédé pour la préparation de dérivés de thiophene |
EP0633263A3 (fr) * | 1993-07-08 | 1995-02-22 | Sumitomo Chemical Co | Procédé pour la préparation de dérivés de thiophene. |
US5498721A (en) * | 1993-07-08 | 1996-03-12 | Sumitomo Chemical Company, Limited | Process for producing thiophene derivatives |
Also Published As
Publication number | Publication date |
---|---|
US4130712A (en) | 1978-12-19 |
CH629495A5 (de) | 1982-04-30 |
FR2358407B1 (fr) | 1981-07-03 |
AT368503B (de) | 1982-10-25 |
BE856676A (fr) | 1978-01-11 |
ATA495277A (de) | 1982-02-15 |
GB1582467A (en) | 1981-01-07 |
NL7707737A (nl) | 1978-01-16 |
GB1582466A (en) | 1981-01-07 |
IT1143742B (it) | 1986-10-22 |
DE2730341A1 (de) | 1978-01-26 |
JPS539790A (en) | 1978-01-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |