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四正丁基三溴化铵_分子结构_CAS_38932-80-8)
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四正丁基三溴化铵

产品号 16258 公司名称 Alfa Aesar
CAS号 38932-80-8 公司网站 http://www.alfa.com
分子式 C16H36Br3N 电 话
分子量 482.17574 传 真
纯 度 98% 电子邮件
保 存 Chembase数据库ID: 129772

产品价格信息

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产品别名

标题
Tetra-n-butylammonium tribromide
IUPAC标准名
tetrabutylazanium; tribroman-2-uide
IUPAC传统名
tetrabutylammonium; tribroman-2-uide
别名
TBAB

产品登记号

Beilstein号 3746114
CAS号 38932-80-8
MDL号 MFCD00012110

产品性质

纯度 98%
外观 Crystalline
熔点 74-76°C
GHS危险品标识 GHS05
GHS危险声明 H314-H318
欧盟危险性物质标志 腐蚀性(Corrosive) 腐蚀性(Corrosive) (C)
GHS警示性声明 P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501A
危险公开号 34
安全公开号 26-36/37/39-45
TSCA收录
联合国危险货物等级 8
联合国危险货物编号 UN3261
联合国危险货物包装类别(PG) III

产品详细信息

参考文献

  • Mild brominating agent. Alkenes are converted to vic-dibromides in high yields. In ethylene glycol, ketones can be converted directly to ɑ-bromo ethylene acetals in good yield, providing convenient access to ɑ,?-unsaturated ketones: Bull. Soc. Chim. Belg., 93, 157 (1984); Synth. Commun., 15, 213 (1985). Aromatic amines and phenols are selectively brominated in the p-position: Synth. Commun., 16, 1641 (1986); Can. J. Chem., 67, 2061 (1989); J. Chem. Res. (Synop.), 381 (1986); Tetrahedron Lett., 39, 8163 (1998).
  • For Hofman rearrangemt of amides to ureas and carbamates, See: Bull. Chem. Soc. Jpn., 61, 1401 (1988).
  • In catalytic amounts promotes dithioacetalization of aldehydes and ketones, and transthioacetalization of 1,3-dioxolanes and dioxanes with ethane- or propanedithiol: Org. Biomol. Chem., 2, 1670 (2004); the cleavage of dithioacetals to the corresponding carbonyl compounds with stoichiometric amounts of the reagent has also been described: Synlett, 785 (2001). Also catalyzes both the protection and deprotection of carbonyl compounds to 1,3-dithiolanes: Tetrahedron. Lett., 43, 2843 (2002), of aldehydes to 1,1-diacyloxy derivatives: Eur. J. Org. Chem., 441 (2005), and alcohols to tetrahydropyranyl (THP) ethers: Tetrahedron Lett., 42, 7679 (2001). In methanol, t-butyldimethylsilyl (TBDMS), THP, and 4,4'-dimethoxytrityl ethers undergo catalytic deprotection. The reaction is chemoselective, permitting, e.g. selective deprotection of primary DMT, TBDMS, and THP ethers in the presence of other ether protecting groups: Org. Lett., 2, 4177 (2000).
  • For a brief feature on uses of this reagent in Organic synthesis, see: Synlett, 2681 (2006).