CA1169086A - Method for making thiobiscarbamates - Google Patents
Method for making thiobiscarbamatesInfo
- Publication number
- CA1169086A CA1169086A CA000390425A CA390425A CA1169086A CA 1169086 A CA1169086 A CA 1169086A CA 000390425 A CA000390425 A CA 000390425A CA 390425 A CA390425 A CA 390425A CA 1169086 A CA1169086 A CA 1169086A
- Authority
- CA
- Canada
- Prior art keywords
- thiobiscarbamates
- making
- pyridine
- reacting
- sulfur
- 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.)
- Expired
Links
Landscapes
- Pyridine Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
METHOD FOR MAKING THIOBISCARBAMATES
ABSTRACT
Method of preparing thiobiscarbamates by reacting nitrogen-containing heterocyclic base and sulfur monochloride or sulfur dichloride and reacting the resulting base-sulfur chloride adduct with carbamate to form thiobiscarbamates.
S P E C I F I C A T I O N
ABSTRACT
Method of preparing thiobiscarbamates by reacting nitrogen-containing heterocyclic base and sulfur monochloride or sulfur dichloride and reacting the resulting base-sulfur chloride adduct with carbamate to form thiobiscarbamates.
S P E C I F I C A T I O N
Claims (2)
1. A method for making a compound of the formula wherein R1 is methyl, ethyl, n-propyl, isopropyl, n-butyl or isobutyl comprising the steps of:
(a) Reacting pyridine with a sulfur chloride selected from the groups of SCL2, S2C12, and mixtures thereof to form pyridine-sulfur chloride adduct, in the presence of excess pyridine, and (b) reacting said adduct with carbamate of the formula wherein R is as previously defined, in the presence of pyridine.
(a) Reacting pyridine with a sulfur chloride selected from the groups of SCL2, S2C12, and mixtures thereof to form pyridine-sulfur chloride adduct, in the presence of excess pyridine, and (b) reacting said adduct with carbamate of the formula wherein R is as previously defined, in the presence of pyridine.
2. The process of claim 1 which further comprises the step of:
(c) purifying the product of step (b) by washing or slurrying said product at least once with water or C-1 to C-5 alcohol.
(c) purifying the product of step (b) by washing or slurrying said product at least once with water or C-1 to C-5 alcohol.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA000390425A CA1169086A (en) | 1981-11-19 | 1981-11-19 | Method for making thiobiscarbamates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA000390425A CA1169086A (en) | 1981-11-19 | 1981-11-19 | Method for making thiobiscarbamates |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1169086A true CA1169086A (en) | 1984-06-12 |
Family
ID=4121449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000390425A Expired CA1169086A (en) | 1981-11-19 | 1981-11-19 | Method for making thiobiscarbamates |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA1169086A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114315672A (en) * | 2021-12-14 | 2022-04-12 | 山东第一医科大学(山东省医学科学院) | Thiodicarb synthesis method with high methomyl conversion rate |
-
1981
- 1981-11-19 CA CA000390425A patent/CA1169086A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114315672A (en) * | 2021-12-14 | 2022-04-12 | 山东第一医科大学(山东省医学科学院) | Thiodicarb synthesis method with high methomyl conversion rate |
CN114315672B (en) * | 2021-12-14 | 2023-09-22 | 山东第一医科大学(山东省医学科学院) | Thiodicarb synthesis method with high methomyl conversion rate |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |