三溴化吡啶鎓

• 产品号: A15684
• CAS号: 39416-48-3
• 分子式: C5H6Br3N
• 分子量: 319.81984
• 纯 度: tech. 90%

产品别名

• 标题: Pyridine hydrobromide perbromide
• IUPAC标准名: dibromane pyridine hydrobromide
• IUPAC传统名: Brom pyridine hydrobromide
• 别名: Pyridinium tribromide; Pyridinium bromide perbromide

产品登记号

• Beilstein号: 3690144
• 默克索引号: 147973
• CAS号: 39416-48-3
• MDL号: MFCD00013223
• EC号: 254-446-8

产品性质

• 纯度: tech. 90%
• 熔点: 128-136°C
• GHS危险声明: H314-H318
• 欧盟危险性物质标志: 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: 26-36/37/39-45-60
• TSCA收录: 是
• 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

参考文献

• Selective monobromination of anilines, predominantly at the para-position, can be effected in THF: Synth. Commun., 23, 855 (1993). In aqueous AcOH, alkyl aryl ethers are p-brominated in high yield: Synth. Commun., 28, 499 (1998), whereas aryl methyl ethers are demethylated on heating in xylene: Indian J. Chem., 33B, 288 (1994). Cleaves thioacetals in the presence of TBAB: J. Org. Chem., 46, 1745 (1981).
• Stable, crystalline, readily-handled source of bromine, useful for a wide range of brominations, including ɑ-bromination of ketones: J. Am. Chem. Soc., 70, 417 (1948), and conversion of alkenes to vic-dibromides. See, for example: Org. Synth. Coll., 5, 604 (1973), Note 2. The rate of addition to alkenes increases markedly on increased substitution, so that selective bromination of the more substituted of two double bonds can be achieved: Synthesis, 966 (1979).
• In pyridine, cyclopentenones are converted directly to their ɑ-bromo derivatives (addition-elimination): Synth. Commun., 18, 1323 (1988).