RO87602B1 - Procedeu de sinteza a malationului - Google Patents
Procedeu de sinteza a malationuluiInfo
- Publication number
- RO87602B1 RO87602B1 RO111822A RO11182283A RO87602B1 RO 87602 B1 RO87602 B1 RO 87602B1 RO 111822 A RO111822 A RO 111822A RO 11182283 A RO11182283 A RO 11182283A RO 87602 B1 RO87602 B1 RO 87602B1
- Authority
- RO
- Romania
- Prior art keywords
- malathion
- synthesis process
- anhydride
- synthesis
- malation
- Prior art date
Links
Landscapes
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Catalysts (AREA)
Abstract
Prezenta inventie se refera la un procedeu de sinteza a malationului si consta în aceea ca acidul 0,0 dimetil ditiofosforic se aditioneaza la anhidrida maleica, în prezenta de catalizator ales dintre: trietilamina, trietilendiamina în proportie de 0,05...0,1% fata de cantitatea de anhidrida, reactia avînd loc la temperatura de 20...30 degree C timp de 3...4h, produsul de aditie se supine apoi esterificarii cu etanol într-un solvent ales dintre: benzen, toluen, metiletilcetona, tricloretilena, obtinîndu-se un produs cu continut foarte ridicat de malation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO111822A RO87602B1 (ro) | 1983-08-05 | 1983-08-05 | Procedeu de sinteza a malationului |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO111822A RO87602B1 (ro) | 1983-08-05 | 1983-08-05 | Procedeu de sinteza a malationului |
Publications (2)
Publication Number | Publication Date |
---|---|
RO87602A2 RO87602A2 (ro) | 1985-12-30 |
RO87602B1 true RO87602B1 (ro) | 1985-12-31 |
Family
ID=20113508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RO111822A RO87602B1 (ro) | 1983-08-05 | 1983-08-05 | Procedeu de sinteza a malationului |
Country Status (1)
Country | Link |
---|---|
RO (1) | RO87602B1 (ro) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7560445B2 (en) | 2005-07-06 | 2009-07-14 | Taro Pharmaceuticals North America, Inc. | Process for preparing malathion for pharmaceutical use |
-
1983
- 1983-08-05 RO RO111822A patent/RO87602B1/ro unknown
Also Published As
Publication number | Publication date |
---|---|
RO87602A2 (ro) | 1985-12-30 |
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