JPS572265A - Preparation of n-substituted thiolcarbamate - Google Patents
Preparation of n-substituted thiolcarbamateInfo
- Publication number
- JPS572265A JPS572265A JP7591780A JP7591780A JPS572265A JP S572265 A JPS572265 A JP S572265A JP 7591780 A JP7591780 A JP 7591780A JP 7591780 A JP7591780 A JP 7591780A JP S572265 A JPS572265 A JP S572265A
- Authority
- JP
- Japan
- Prior art keywords
- titled compound
- alkyl halide
- catalyst
- substituted
- acid salt
- 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.)
- Pending
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare the titled compound useful as a pesticide, economically, by reacting an N-substituted thiolcarbamic acid salt with an alkyl halide in the presence of a quaternary salt catalyst, adjusting the alkalinity of the aqueous layer of the reaction mixture, and adding and recycling the alkyl halide to the reaction system.
CONSTITUTION: The titled compound is prepared by reacting an N-substituted thiolcarbamic acid salt with an alkyl halide in the presence of a catalyst composed of at least one compound selected from quaternary ammonium salts and quaternary phosphonium salts, pref. at 0W70°C. The reaction liquid is separated into an aqueous layer and an organic layer, and the alkali concentration of the aqueous layer is adjusted pref. to ≥15%. The alkyl halide is added to the layer to effect the extraction of the catalyst and the conversion of the unreacted carbamic acid salt to the titled compound. Finally, the reaction liquid is recycled to the main reaction system to repeat the production of the titled compound. The process enables the efficient utilization of the catalyst and the raw materials, and the production of the titled compound in high yield and purity.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7591780A JPS572265A (en) | 1980-06-05 | 1980-06-05 | Preparation of n-substituted thiolcarbamate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7591780A JPS572265A (en) | 1980-06-05 | 1980-06-05 | Preparation of n-substituted thiolcarbamate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS572265A true JPS572265A (en) | 1982-01-07 |
Family
ID=13590142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7591780A Pending JPS572265A (en) | 1980-06-05 | 1980-06-05 | Preparation of n-substituted thiolcarbamate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS572265A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60128190U (en) * | 1984-02-03 | 1985-08-28 | 古河電気工業株式会社 | automotive heat exchanger |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52108908A (en) * | 1976-03-09 | 1977-09-12 | Mitsubishi Petrochem Co Ltd | Preparation of n-substituted thiolcarbamates |
| JPS54132524A (en) * | 1978-03-23 | 1979-10-15 | Stauffer Chemical Co | Manufacture of thiocarbamate by quaternary ammonium salt catalyst |
-
1980
- 1980-06-05 JP JP7591780A patent/JPS572265A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52108908A (en) * | 1976-03-09 | 1977-09-12 | Mitsubishi Petrochem Co Ltd | Preparation of n-substituted thiolcarbamates |
| JPS54132524A (en) * | 1978-03-23 | 1979-10-15 | Stauffer Chemical Co | Manufacture of thiocarbamate by quaternary ammonium salt catalyst |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60128190U (en) * | 1984-02-03 | 1985-08-28 | 古河電気工業株式会社 | automotive heat exchanger |
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