MD223C2 - Procedeu de obţinere a alcoolului (S) -cian-3-fenoxibenzilic - Google Patents
Procedeu de obţinere a alcoolului (S) -cian-3-fenoxibenzilicInfo
- Publication number
- MD223C2 MD223C2 MD94-0273A MD940273A MD223C2 MD 223 C2 MD223 C2 MD 223C2 MD 940273 A MD940273 A MD 940273A MD 223 C2 MD223 C2 MD 223C2
- Authority
- MD
- Moldova
- Prior art keywords
- ciano
- spirit
- phenoxybenzilic
- toluensulfoacid
- para
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
- 238000002360 preparation method Methods 0.000 title abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 238000004587 chromatography analysis Methods 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 230000003993 interaction Effects 0.000 abstract 1
- 150000002596 lactones Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Invenţia se referă la procedeul de obţinere a alcoolului benzilic optic activ, în special a alcoolului (S)α-cian-3-fenoxibenzilic, care poate fi utilizat la sinteza piretroidelor, folosite în agricultură.Sarcina invenţiei constă în elaborarea unui procedeu de obţinere a unui alcool benzilic nou, pe baza căruia se obţin piretroide cu o activitate considerabil mai înaltă.Procedeul se realizează prin tratarea alcoolului (R, S)α-cian-3-fenoxibenzilic cu lactona acidului cis-2,2-dimetil-3S-(dioximetil) carbonic la temperatura de 60-80°C în vid în prezenţa acidului para-toluensulfonic. Din amestecul de izomeri rezultat, prin cromatografiere, se separă ulterior (1R, 5S) 6,6-dimetil-4(R)(S)-cian(3-fenoxifenil) -metoxi[3oxabiciclo [3,1,0] hexan-2-ona, care se hidrolizează prin fierbere în prezenţa acidului para-toluensulfonic.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7802621A FR2421875A1 (fr) | 1978-01-31 | 1978-01-31 | Alcool benzylique substitue optiquement actif et son procede de preparation |
| SU792714653A SU957764A3 (ru) | 1978-01-31 | 1979-01-19 | Способ получени / @ / @ -циано-3-феноксибензилового спирта |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD223B1 MD223B1 (ro) | 1995-06-30 |
| MD223C2 true MD223C2 (ro) | 1995-11-30 |
Family
ID=26220423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MD94-0273A MD223C2 (ro) | 1978-01-31 | 1994-09-08 | Procedeu de obţinere a alcoolului (S) -cian-3-fenoxibenzilic |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD223C2 (ro) |
-
1994
- 1994-09-08 MD MD94-0273A patent/MD223C2/ro unknown
Non-Patent Citations (2)
| Title |
|---|
| Brevet nr. 2240914, FR, Int. Cl. C 07 C 69/74, 1974 * |
| Степаненко Б.И. Курс органической химии, М., Высшая школа. 1966, с. 222-223 * |
Also Published As
| Publication number | Publication date |
|---|---|
| MD223B1 (ro) | 1995-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 1K4A | Payment of annual fees |