MD116C2 - Procedeu de obţinere a fumaratului de alchilanilină - Google Patents
Procedeu de obţinere a fumaratului de alchilanilinăInfo
- Publication number
- MD116C2 MD116C2 MD94-0094A MD940094A MD116C2 MD 116 C2 MD116 C2 MD 116C2 MD 940094 A MD940094 A MD 940094A MD 116 C2 MD116 C2 MD 116C2
- Authority
- MD
- Moldova
- Prior art keywords
- obtaining
- fumarate
- aniline
- alkyl
- hours
- Prior art date
Links
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Invenţia se referă la substituenţii anilinei, în particular la obţinerea C1-C4-fumarat de alchilanilinei-subproductul pentru sinteza erbicidelor heterociclice. Scopul ei constă în simplificarea procesului. El se efectuează prin reacţia C1-C4 achil diclorsulcinatului la început cu un surplus triplu de amin cu formula R1R2NH, în care R1 şi R2 reprezintă H, C1-C4-alchil, dintre care numai unul din R1 şi R2 reprezentând H sau NR1-R2 fiind heterociclu cu 5 sau 6 membri cu 1, 2 heteroatomi, la fierbere timp de 8 ore, apoi cu anilină în dizolvantul organic inert ce conţine acid organic, la 80-85C timp de 4 ore. În acest caz este posibilă întrebuinţarea reactivelor accesibile şi obţinerea unor randamente eficiente ale produsului de destinaţie (până la 69%).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/902,274 US4675432A (en) | 1986-08-29 | 1986-08-29 | Method for the preparation of anilinofumarate |
| SU4203226A SU1736334A3 (ru) | 1986-08-29 | 1987-08-28 | Способ получени алкиланилинофумарата |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD116B1 MD116B1 (ro) | 1994-12-31 |
| MD116C2 true MD116C2 (ro) | 1995-06-30 |
Family
ID=26666105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MD94-0094A MD116C2 (ro) | 1986-08-29 | 1994-04-27 | Procedeu de obţinere a fumaratului de alchilanilină |
Country Status (3)
| Country | Link |
|---|---|
| LT (1) | LT2505B (ro) |
| LV (1) | LV5699A3 (ro) |
| MD (1) | MD116C2 (ro) |
-
1993
- 1993-09-16 LT LTRP984A patent/LT2505B/xx not_active IP Right Cessation
- 1993-10-08 LV LV931142A patent/LV5699A3/xx unknown
-
1994
- 1994-04-27 MD MD94-0094A patent/MD116C2/ro active IP Right Grant
Non-Patent Citations (4)
| Title |
|---|
| Brevet US, nr. 3656283, Int. cl.5 C 07 D 215/54, 1984. * |
| Brevet US, nr. 4459409, Int. cl.5 C 07 D 215/54, 1984. * |
| Brevet US, nr. 4766218, Int. cl.5 C 07 D 215/54, 1988, PRIVIND 29.08.86. * |
| Heterocyclic Compounds, 1952, v. 4, p. 209-227. * |
Also Published As
| Publication number | Publication date |
|---|---|
| LT2505B (lt) | 1994-02-15 |
| LV5699A3 (lv) | 1995-02-20 |
| MD116B1 (ro) | 1994-12-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG4A | Patent for invention issued | ||
| IF99 | Valid patent on 19990615 |
Free format text: EXPIRES: 20070827 |