推荐产品
等级
ACS reagent
质量水平
检测方案
≥98.0%
形式
powder
杂质
≤0.5% trimethylamine hydrobromide
≤0.5% trimethylamine
mp
>300 °C (lit.)
SMILES字符串
[Br-].C[N+](C)(C)C
InChI
1S/C4H12N.BrH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1
InChI key
DDFYFBUWEBINLX-UHFFFAOYSA-M
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一般描述
Tetrabutylammonium bromide is a quaternary ammonium compound that is widely used as a phase transfer catalyst. Absolute viscosities of its aqueous solutions have been measured at various temperatures (20,25 and 30°C). Various physical properties (activity coefficient up to saturation, conductance, density and solubility in water) of TMABr have been evaluated.
应用
Tetrabutylammonium bromide (TBAB) may be used in the molten state in the following processes:
- Synthesis of (2S)-5-(3-phenyl-2-phthalimidylpropanoylamino)isophthalic acid.
- Synthesis of alkyl-substituted pyrroles in the absence of catalyst and organic solvent.
- Synthesis of dithioacetals from acetals by transthioacetalisation in a solvent free environment.
- Synthesis of polyamides (PAs) by the polymerization of terephthalic acid and diisocyanates.
- Catalyze the addition of thiols to conjugated alkenes.
- Dehydrochlorination of poly(vinyl chloride).
警示用语：
Danger
危险声明
危险分类
Acute Tox. 2 Oral
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
Some physical properties of aqueous solutions of tetramethylammonium bromide and tetramethylammonium iodide
Levien BJ.
Australian Journal of Chemistry, 18(8), 1161-1170 (1965)
Viscosity of aqueous solutions. III. Tetramethylammonium bromide and the role of the tetraalkylammonium ions.
Nightingale Jr ER.
The Journal of Physical Chemistry, 66(5), 894-897 (1962)
Heat capacities and thermodynamic properties of two tetramethylammonium halides.
Chang SS and Westrum Jr EF.
J. Chem. Phys. , 36(9), 2420-2423 (1962)
Dehydrochlorination of poly (vinyl chloride) by aqueous sodium hydroxide solution under two-phase conditions.
Kise H.
Journal of Polymer Science Part A: Polymer Chemistry, 20(11), 3189-3197 (1982)
Interfacial chemistry behavior of phase transfer catalysis for hydroxide ion initiated reactions.
Xia L, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 317(1), 747-750 (2008)
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