CA1169086A - Method for making thiobiscarbamates - Google Patents

Method for making thiobiscarbamates

Info

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
Application number
CA000390425A
Other languages
French (fr)
Inventor
Robert W. Ashworth
Wallace Y. Fu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Priority to CA000390425A priority Critical patent/CA1169086A/en
Application granted granted Critical
Publication of CA1169086A publication Critical patent/CA1169086A/en
Expired legal-status Critical Current

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  • 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

Claims (2)

WHAT IS CLAIMED IS:
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.
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.
CA000390425A 1981-11-19 1981-11-19 Method for making thiobiscarbamates Expired CA1169086A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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