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CAS RN: 15114-43-9 | 产品编码: D3753
Dibromoisocyanuric Acid
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技术规格
| Appearance | White to Light yellow to Light orange powder to crystal |
| Purity(Iodometric Titration) | min. 97.0 % |
物性（参考值）
| 熔点 | 309 °C |
GHS
| 象形图 |
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| 信号词 | Danger |
| 危险性说明 | H314 : Causes severe skin burns and eye damage. H272 : May intensify fire; oxidizer. |
| 防范说明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P260 : Do not breathe dusts or mists. P220 : Keep/Store away from clothing/ combustible materials. P210 : Keep away from heat. P221 : Take any precaution to avoid mixing with combustibles. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection. P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. P301 + P330 + P331 : IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P363 : Wash contaminated clothing before reuse. P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor. P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor. P405 : Store locked up. |
相关法规
运输信息
| UN编号 | UN3085 |
| 类别 | 5.1 / 8 |
| 包装类别 | II |
| HS编码* | 2933.69-000 |
应用
TCI Practical Example: Bromination Reaction Using Dibromoisocyanuric Acid.
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Used Chemicals
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- 2,6-Dinitrotoluene
- Dibromoisocyanuric Acid (= DBI) [D3753]
- conc. H2SO4
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Procedure
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Dibromoisocyanuric acid (433 mg, 1.51 mmol) was added to a solution of 2,6-dinitrotoluene (500 mg, 2.75 mmol) in conc. sulfuric acid (3 mL) and stirred at room temperature for 1.5 hours. Then the solution was poured into iced water. The aqueous layer was extracted with ethyl acetate and the organic layer was dried over anhydrous sodium sulfate and filtered. The solvent was removed under reduced pressure and the residue was purified by silica gel column chromatography (dichloromethane:hexane = 0:100 - 20:80) to give 5-bromo-2-methyl-1,3-dinitrobenzene as a white solid (501 mg, 70% yield).
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Experimenter’s Comments
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The reaction mixture was monitored by UPLC.
Both bromo groups of DBI can be used for bromination.
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Analytical Data
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5-Bromo-2-methyl-1,3-dinitrobenzene
1H NMR (400 MHz, CDCl3); δ 8.14 (s, 2H), 2.53 (s, 3H).
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Lead Reference
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- Conjugated polymers based on benzodithiophene and arylene imides: Extended absorptions and tunable electrochemical properties
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Other Reference
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- A Concise Total Synthesis of Breitfussin A and B
应用
Highly Effective Brominating Reagent (DBI)
References
- 1)W. Gottardi, Monatsch. Chem. 1968, 99, 815.
- 2)A. A. Kogon, D. E. Bochkariov, B. P. Baskunov, A. V. Cheprakov, Liebigs Ann. Chem. 1992, 1992, 879.
- 3)J. Chen, M.-M. Shi, X.-L. Hu, M. Wang, H.-Z. Chen, Polymer 2010, 51, 2897.
参考文献
TCIMail
[TCIMAIL No.143] Highly Effective Brominating Reagent[产品拾贝] Highly Effective Brominating Reagent (DBI)
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