IT1041112B - Phosphorothiate and phenyl-phosphonothioate prepn - from a phosphorochlorothioate and alkali metal salt with quat phosphonium or ammonium salt catalyst - Google Patents
Phosphorothiate and phenyl-phosphonothioate prepn - from a phosphorochlorothioate and alkali metal salt with quat phosphonium or ammonium salt catalystInfo
- Publication number
- IT1041112B IT1041112B IT5078175A IT5078175A IT1041112B IT 1041112 B IT1041112 B IT 1041112B IT 5078175 A IT5078175 A IT 5078175A IT 5078175 A IT5078175 A IT 5078175A IT 1041112 B IT1041112 B IT 1041112B
- Authority
- IT
- Italy
- Prior art keywords
- prepn
- quat
- phosphonium
- phenyl
- alkali metal
- Prior art date
Links
Abstract
Prepn. of a phosphorothioate of formula (I) or phenylphosphonothioate of formula (II) comprises reacting (III) with R-OM for (I), or with MO-C6H4-S-C6H4-OM for (II). (where M = alkali metal; R1 = 1-4C alkyl; R2 = 1-4C alkoxy or phenyl; R is hexagonal aromatic heterocyclic or carbocyclic ring, carrying up to 3 substits. chosen from NO2, CN, halo, 1-4C alkyl, 1-4C alkoxy, alkylthio or alkylsulphinyl with >=1 NO2, alkylthio or alkysulphinyl gp.), in the presence of a liq. reaction medium with as catalysts (1) a quat. phosphonium or ammonium salt with >=10C atoms with a solubility of >=1 wt. % in the medium and (2) an unhindered tert. amino nucleophile. The cpds. (1) and (2) are pref. used in an amt. of 0.1-20 moles % based on reactants. A temp. of 0-100 degrees C. is used. Prods. (I) and (II) are obtd. in excellent yields with high purity. and are useful as pesticides.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT5078175A IT1041112B (en) | 1975-08-01 | 1975-08-01 | Phosphorothiate and phenyl-phosphonothioate prepn - from a phosphorochlorothioate and alkali metal salt with quat phosphonium or ammonium salt catalyst |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT5078175A IT1041112B (en) | 1975-08-01 | 1975-08-01 | Phosphorothiate and phenyl-phosphonothioate prepn - from a phosphorochlorothioate and alkali metal salt with quat phosphonium or ammonium salt catalyst |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1041112B true IT1041112B (en) | 1980-01-10 |
Family
ID=11273699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT5078175A IT1041112B (en) | 1975-08-01 | 1975-08-01 | Phosphorothiate and phenyl-phosphonothioate prepn - from a phosphorochlorothioate and alkali metal salt with quat phosphonium or ammonium salt catalyst |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1041112B (en) |
-
1975
- 1975-08-01 IT IT5078175A patent/IT1041112B/en active
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