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CAS RN: 1643-19-2 | 产品编码: T0054
Tetrabutylammonium Bromide
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技术规格
| Appearance | White to Almost white powder to crystaline |
| Purity(Nonaqueous Titration) | min. 98.0 % |
| Drying loss | max. 1.0 % |
| pH | 3.5 to 7.0 (50 g/L, 25 deg-C) |
| Solubility in Water | almost transparency |
| Tributylamine hydrobromide | max. 1.0 % |
物性（参考值）
| 熔点 | 103 °C |
| 水溶性 | 可溶 |
| 溶解性（可溶于） | 醇 |
GHS
| 象形图 |
|
| 信号词 | Warning |
| 危险性说明 | H302 : Harmful if swallowed. H315 : Causes skin irritation. H319 : Causes serious eye irritation. |
| 防范说明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P270 : Do not eat, drink or smoke when using this product. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P302 + P352 : IF ON SKIN: Wash with plenty of water. P337 + P313 : If eye irritation persists: Get medical advice/ attention. P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P362 + P364 : Take off contaminated clothing and wash it before reuse. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. P301 + P312 + P330 : IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth. |
相关法规
运输信息
| HS编码* | 2923.90-000 |
应用
TMS Protection of Alcohols using Azidotrimethylsilane
References
- Efficient O-Trimethylsilylation of Alcohols and Phenols with Trimethylsilyl Azide Catalyzed by Tetrabutylammonium Bromide under Neat Conditions
- Protection for the Hydroxyl Group, Including 1,2- and 1,3-Diols
- P. G. M. Wuts, in Greene’s Protective Groups in Organic Synthesis, 5th ed., ed. by P. G. M. Wuts, John Wiley & Sons, Inc., Hoboken, New Jersey, 2014, Chap. 2, 17.
应用
Regioselective Bromination of Fused Pyridine N-Oxides
Typical Procedure:
To a mixture of tetrabutylammonium bromide (1.5 eq.), 4Å molecular sieves and the appropriate fused pyridine N-oxide is added CH2Cl2 (0.01M) and the mixture is stirred at room temperature for 10 min. p-Toluenesulfonic anhydride (1.5 eq.) is added and the reaction is stirred at room temperature overnight. The reaction mixture is filtered and concentrated under reduced pressure. The crude product is purified by flash column chromatography using hexanes/CH2Cl2 and hexanes/EtOAc solvent mixtures.
To a mixture of tetrabutylammonium bromide (1.5 eq.), 4Å molecular sieves and the appropriate fused pyridine N-oxide is added CH2Cl2 (0.01M) and the mixture is stirred at room temperature for 10 min. p-Toluenesulfonic anhydride (1.5 eq.) is added and the reaction is stirred at room temperature overnight. The reaction mixture is filtered and concentrated under reduced pressure. The crude product is purified by flash column chromatography using hexanes/CH2Cl2 and hexanes/EtOAc solvent mixtures.
References
应用
Di-Anionic Alkyl Zincates as Transmetalators in Negishi Cross-Coupling
References
- 1)L. C. McCann, H. N. Hunter, J. A. C. Clyburne, M. G. Organ, Angew. Chem. Int. Ed. 2012, 51, 7024.
- 2)I. S. MacIntosh, C. N. Sherren, K. N. Robertson, J. D. Masuda, C. C. Pye, J. A. C. Clyburne, Organometallics 2010, 29, 2063.
参考文献
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其他文件
相关产品
![Tetrabutylammonium Bromide [Reagent for Ion-Pair Chromatography]](/medias/I0365.jpg?context=bWFzdGVyfHJvb3R8MjAzMjB8aW1hZ2UvanBlZ3xhRGhoTDJneFpDODVNamd3T0RZM05UQXdNRFl5TDBrd016WTFMbXB3Wnd8MmEzNzI0NjgwMzVmMTczY2UzNTY2NzBiY2IyYjc3MzU2YjQzMDA1M2I0MjAyZTc5NGFkMjAyMzgyMWNjZDkwMQ "Tetrabutylammonium Bromide [Reagent for Ion-Pair Chromatography]")
Tetrabutylammonium Bromide [Reagent for Ion-Pair Chromatography]
| 产品 | I0365 |
| CAS RN | 1643-19-2 |
| 纯度/分析方法 | >99.0%(T) |