4,5-DIMETHYL-1,3-THIAZOL-2-AMINE
- Product Name
- 4,5-DIMETHYL-1,3-THIAZOL-2-AMINE
- CAS No.
- 2289-75-0
- Chemical Name
- 4,5-DIMETHYL-1,3-THIAZOL-2-AMINE
- Synonyms
- AURORA 5329;ASISCHEM D48929;AKOS BBS-00004664;IFLAB-BB F1920-0013;4,5-DIMETHYLTHIAZOL-2-AMINE;white to light yellow solid;DIMETHYL-1,3-THIAZOL-2-AMINE;2-ThiazolaMine,4,5-diMethyl-;4,5-DIMETHYL-THIAZOL-2-YLAMINE;4,5-dimethyl-1,3-thiazol-2-amin
- CBNumber
- CB9494620
- Molecular Formula
- C5H8N2S
- Formula Weight
- 128.2
- MOL File
- 2289-75-0.mol
4,5-DIMETHYL-1,3-THIAZOL-2-AMINE Property
- Melting point:
- 66-69
- storage temp.
- under inert gas (nitrogen or Argon) at 2–8 °C
- form
- crystalline solid
- color
- Very dark red/ brown
- CAS DataBase Reference
- 2289-75-0(CAS DataBase Reference)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- A2916
- Product name
- 4,5-Dimethylthiazol-2-amine
- Packaging
- 1G
- Price
- $54
- Updated
- 2025/07/31
- Product number
- A2916
- Product name
- 4,5-Dimethylthiazol-2-amine
- Packaging
- 5G
- Price
- $162
- Updated
- 2025/07/31
- Product number
- D462355
- Product name
- 4,5-Dimethyl-1,3-thiazol-2-amine
- Packaging
- 500mg
- Price
- $65
- Updated
- 2021/12/16
- Product number
- CS-W018469
- Product name
- 4,5-Dimethylthiazol-2-amine
- Purity
- >97.0%
- Packaging
- 5g
- Price
- $78
- Updated
- 2021/12/16
- Product number
- 046865
- Product name
- 4,5-Dimethyl-1,3-thiazol-2-amine
- Purity
- >95%
- Packaging
- 500mg
- Price
- $25
- Updated
- 2021/12/16
4,5-DIMETHYL-1,3-THIAZOL-2-AMINE Chemical Properties,Usage,Production
Synthesis
4091-39-8
17356-08-0
2289-75-0
1. In a 250 mL three-necked round-bottomed flask equipped with a stirrer, condenser tube, and constant-pressure dropping funnel, 43.27 g (0.6 mol) of 3-chloro-2-butanone and 30.42 g (0.3 mol) of 36% hydrochloric acid were added. Subsequently, 8.1 g (0.06 mol) of copper chloride was added and the reaction system was warmed to 35°C. 49.23 g (0.39 mol) of 30% hydrogen peroxide was added slowly and dropwise over a period of 15 minutes. After the dropwise addition was completed, the reaction mixture was heated to 78°C and refluxed for 5 hours. After completion of the reaction, it was cooled to room temperature, the organic phase was separated, washed twice sequentially with saturated sodium carbonate solution and dried over anhydrous sodium sulfate. The 137-140°C fraction was collected by decompression distillation to give 8.0 g of 3-chloro-2-butanone derivative XVII in 12.6% yield. 2. 30 mL of ethanol and 3.5 g (47 mmol) of thiourea were added to a 100 mL round-bottomed flask and heated to reflux with stirring until the thiourea was completely dissolved. Subsequently, 5.0 g (47 mmol) of 3-chloro-2-butanone derivative XVII was added and refluxing was continued overnight. After completion of the reaction, the ethanol was removed by concentration under reduced pressure. The crude product obtained was dissolved in 30 mL of dichloromethane, washed with saturated sodium carbonate solution, the organic layer was separated and dried over anhydrous sodium sulfate. After concentration, a yellow oil was obtained, which was further processed to give 2-amino-4,5-dimethylthiazole XVIII 3.8 g in 63.3% yield.
References
[1] Patent: CN102942565, 2016, B. Location in patent: Paragraph 0040-0043; 0093-0094
[2] Chemistry of Heterocyclic Compounds (New York, NY, United States), 1965, vol. 1, p. 200 - 201
[3] Khimiya Geterotsiklicheskikh Soedinenii, 1965, vol. 1, p. 303 - 305
[4] Russian Journal of Organic Chemistry, 2013, vol. 49, # 4, p. 575 - 579
[5] Zh. Org. Khim., 2013, vol. 49, # 4, p. 591 - 595,5
4,5-DIMETHYL-1,3-THIAZOL-2-AMINE Preparation Products And Raw materials
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View Lastest Price from 4,5-DIMETHYL-1,3-THIAZOL-2-AMINE manufacturers
- Product
- 4,5-DIMETHYL-1,3-THIAZOL-2-AMINE 2289-75-0
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 100KG
- Release date
- 2019-08-07