4,5-DibroMo-2-Methyl-2H-1,2,3-triazole
- Product Name
- 4,5-DibroMo-2-Methyl-2H-1,2,3-triazole
- CAS No.
- 28938-17-2
- Chemical Name
- 4,5-DibroMo-2-Methyl-2H-1,2,3-triazole
- Synonyms
- 4,5-dibromo-2-methyltriazole;4,5-dibromo-2-methyl-triazole;4,5-dibromo-2-methyl-1,2,3-triazole;2-Methyl-4,5-dibromo-2H-1,2,3-triazole;4,5-DibroMo-2-Methyl-2H-1,2,3-triazole;2H-1,2,3-Triazole, 4,5-dibromo-2-methyl-
- CBNumber
- CB22733779
- Molecular Formula
- C3H3Br2N3
- Formula Weight
- 240.88
- MOL File
- 28938-17-2.mol
4,5-DibroMo-2-Methyl-2H-1,2,3-triazole Property
- storage temp.
- under inert gas (nitrogen or Argon) at 2-8°C
- Appearance
- White to off-white Solid
- InChI
- InChI=1S/C3H3Br2N3/c1-8-6-2(4)3(5)7-8/h1H3
- InChIKey
- BNHACSBPYOBEEC-UHFFFAOYSA-N
- SMILES
- N1=C(Br)C(Br)=NN1C
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
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
- P000087779
- Product name
- 4,5-Dibromo-2-methyl-2H-1,2,3-triazole
- Purity
- 97%
- Packaging
- 250mg
- Price
- $34
- Updated
- 2021/12/16
- Product number
- P000087779
- Product name
- 4,5-Dibromo-2-methyl-2H-1,2,3-triazole
- Purity
- 97%
- Packaging
- 1g
- Price
- $101
- Updated
- 2021/12/16
- Product number
- P000087779
- Product name
- 4,5-Dibromo-2-methyl-2H-1,2,3-triazole
- Purity
- 97%
- Packaging
- 100mg
- Price
- $20
- Updated
- 2021/12/16
- Product number
- P000087779
- Product name
- 4,5-Dibromo-2-methyl-2H-1,2,3-triazole
- Purity
- 97%
- Packaging
- 5g
- Price
- $243
- Updated
- 2021/12/16
- Product number
- 2904AB
- Product name
- 4,5-Dibromo-2-methyl-2H-1,2,3-triazole
- Packaging
- 1g
- Price
- $251
- Updated
- 2021/12/16
4,5-DibroMo-2-Methyl-2H-1,2,3-triazole Chemical Properties,Usage,Production
Synthesis
22300-52-3
74-88-4
28938-17-2
25537-64-8
10.0 g (44.1 mmol) of 4,5-dibromo-2H-1,2,3-triazole (commercially available) was dissolved in 90 mL of tetrahydrofuran, 6.1 g (44.2 mmol) of potassium carbonate was added as a base, and the reaction mixture was cooled to -10 °C. Subsequently, 7.5 g (53 mmol) of iodomethane was slowly added. The reaction system was warmed to 35-40 °C with continuous stirring until the reaction was complete. Upon completion of the reaction, the reaction was quenched by the addition of 50 mL of water and the tetrahydrofuran (~90 mL) was removed by distillation. Extraction was carried out with methyl tert-butyl ether and the organic phase was dried with anhydrous magnesium sulfate. Concentrated to dryness under reduced pressure, 10 mL of methyl tert-butyl ether was added to the residual solid, and 70 mL of hexane was added slowly and dropwise to induce precipitation of the solid. After addition, stirring was continued for 1 to 2 hours at room temperature. The solid was collected by filtration to give 5.8 g of pure 4,5-dibromo-1-methyl-1H-1,2,3-triazole in 57% yield.
References
[1] Patent: CN105585534, 2016, A. Location in patent: Paragraph 0041; 0042; 0043
[2] Organic Letters, 2010, vol. 12, # 20, p. 4632 - 4635
4,5-DibroMo-2-Methyl-2H-1,2,3-triazole Preparation Products And Raw materials
Raw materials
Preparation Products
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