1,3-二溴-5,5-二甲基乙内酰脲

• 产品号: A15510
• CAS号: 77-48-5
• 分子式: C5H6Br2N2O2
• 分子量: 285.92134
• 纯 度: 98%

产品别名

• 标题: 1,3-Dibromo-5,5-dimethylhydantoin
• IUPAC标准名: 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione
• IUPAC传统名: dbdmh
• 别名: Dibromantin; Bromodan

产品登记号

• CAS号: 77-48-5
• EC号: 201-030-9
• Beilstein号: 146024
• MDL号: MFCD00003189

产品性质

• 纯度: 98%
• 闪点: 155°C(311°F)
• 熔点: ca 198°C dec.
• GHS危险声明: H272-H314-H318-H400-H302
• 欧盟危险性物质标志: X
• 欧盟危险性物质标志: 腐蚀性(Corrosive) (C)
• 欧盟危险性物质标志: 氧化性(Oxidising) (O)
• 欧盟危险性物质标志: 环境危害性(Nature polluting) (N)
• GHS警示性声明: P221-P210-P303+P361+P353-P305+P351+P338-P405-P501A
• 危险公开号: 8-22-34-50
• RTECS编号: MU0686000
• 安全公开号: 17-20-26-36/37/39-45-57
• 保存注意事项: Moisture Sensitive
• TSCA收录: 是
• 联合国危险货物等级: 5.1
• 联合国危险货物编号: UN3085
• 联合国危险货物包装类别(PG): II

参考文献

• For use in combination with AgF as a reagent for the trans-fluorobromination of alkenes, see: Chem. Lett., 1877 (1988).
• Free-radical brominating agent: J. Chem. Soc., 4678 (1962), alternative to N-Bromosuccinimide, A15922, in many large-scale brominations. Superior to NBS for the regioselective free-radical 2-bromination of pyrrole: J. Org. Chem., 46, 2221 (1981); Org. Synth. Coll., 9, 121 (1998).
• Also behaves as a source of positive bromine. Electron-rich aromatic compounds undergo uncatalyzed ring-bromination: Tetrahedron Lett., 38, 4415 (1997). The bromination of less active substrates can be catalyzed by TMS triflate. Bromination of aromatic rings, including those with electron-withdrawing substituents, also occurs in the presence of strong acids: Bull. Chem. Soc. Jpn., 67, 1918 (1994). Has also been used as an alternative to NBS for the ring bromination of activated benzoic acids in the presence of aqueous NaOH: Tetrahedron Lett., 34, 931 (1993).