GB733092A - Preparation of 2-mercaptothiazolone-5 - Google Patents
Preparation of 2-mercaptothiazolone-5Info
- Publication number
- GB733092A GB733092A GB2999152A GB2999152A GB733092A GB 733092 A GB733092 A GB 733092A GB 2999152 A GB2999152 A GB 2999152A GB 2999152 A GB2999152 A GB 2999152A GB 733092 A GB733092 A GB 733092A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hour
- aminoacetamide
- salt
- reaction mixture
- sodium hydroxide
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D277/22—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
- C07D277/30—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Thiazole And Isothizaole Compounds (AREA)
Abstract
2-Mercaptothiazolone-5 or a salt thereof is prepared by reacting aminoacetamide with carbon disulphide in a solvent followed by the gradual addition of a strong base such as sodium hydroxide and, after a period of time, e.g. one hour, acidifying the reaction mixture. The solvent is preferably alcohol, and in the case where the starting material is or contains aminoacetamide hydrochloride, the salt is preferably first neutralised by the direct addition of the full equivalent amount of a strong or weak base, and thereafter at least one mol. equivalent of strong base per mol. of aminoacetamide is gradually added. In the example, sodium hydroxide is added to the neutralized reaction mixture over periods of half an hour and one hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2999152A GB733092A (en) | 1952-11-26 | 1952-11-26 | Preparation of 2-mercaptothiazolone-5 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2999152A GB733092A (en) | 1952-11-26 | 1952-11-26 | Preparation of 2-mercaptothiazolone-5 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB733092A true GB733092A (en) | 1955-07-06 |
Family
ID=10300482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2999152A Expired GB733092A (en) | 1952-11-26 | 1952-11-26 | Preparation of 2-mercaptothiazolone-5 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB733092A (en) |
-
1952
- 1952-11-26 GB GB2999152A patent/GB733092A/en not_active Expired
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