ES8101581A1 - A procedure for the obtaining of acids 2- (4'tienil) - propionic (Machine-translation by Google Translate, not legally binding) - Google Patents
A procedure for the obtaining of acids 2- (4'tienil) - propionic (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES8101581A1 ES8101581A1 ES487840A ES487840A ES8101581A1 ES 8101581 A1 ES8101581 A1 ES 8101581A1 ES 487840 A ES487840 A ES 487840A ES 487840 A ES487840 A ES 487840A ES 8101581 A1 ES8101581 A1 ES 8101581A1
- Authority
- ES
- Spain
- Prior art keywords
- propionic
- reaction
- tienil
- translation
- procedure
- 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
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PROCEDURE FOR OBTAINING ACIDITY 2- (4'' - TIENIL) -PROPIONIC. IT CONSISTS OF THE FOLLOWING STAGES: 1) REACTION OF A COMPOUND 4-BROMOTIOFENO-3-SUBSTITUTED WITH N-BUTYL-LITHIUM AND ACETALDEHYDE, OXIDIZING 4-ACETILTIOFENO-3-SUBSTITUTED. 2) REACTION OF THE PRODUCT OBTAINED WITH ETHYL CHLOROACETATE IN THE PRESENCE OF POTASSIC TERTBUTOXIDE AND SUBSEQUENTLY WITH SODIUM AND ETHANOL, HYDROLYSING THE GLYCIDIC ESTER OBTAINED, TO FORM A DERIVATIVE OF GENERAL FORMULA (I). 3) OXIDATION OF THE PRODUCT OBTAINED WITH SILVER NITRATE IN BASIC MEDIUM, IN THE PRESENCE OF TRIETIBENZENYL AMMONIUM CHLORIDE AS A CATALYST, TO GIVE ITS ACID 2-4'' - TENYL) -PROPIONIC FORMULA (II). 4) INTRODUCTION OF A R1 SUBSTITUTE IN THE POSITION 2-THIOPHENIC BY BALOGENATION OR REACTION OF ACILATION OF FRIEDEL-CRAFTS OR BY WOLF-KISHNER REDUCTION. COMPOUNDS OF GENERAL FORMULA ARE OBTAINED (III). * FORMULA * L (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES487840A ES8101581A1 (en) | 1980-01-18 | 1980-01-18 | A procedure for the obtaining of acids 2- (4'tienil) - propionic (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES487840A ES8101581A1 (en) | 1980-01-18 | 1980-01-18 | A procedure for the obtaining of acids 2- (4'tienil) - propionic (Machine-translation by Google Translate, not legally binding) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES487840A0 ES487840A0 (en) | 1980-12-16 |
| ES8101581A1 true ES8101581A1 (en) | 1980-12-16 |
Family
ID=8479641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES487840A Expired ES8101581A1 (en) | 1980-01-18 | 1980-01-18 | A procedure for the obtaining of acids 2- (4'tienil) - propionic (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES8101581A1 (en) |
-
1980
- 1980-01-18 ES ES487840A patent/ES8101581A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES487840A0 (en) | 1980-12-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19970303 |