2,4,4,6-四溴-2,5-环己二烯酮

• 产品号: L00152
• CAS号: 20244-61-5
• 分子式: C6H2Br4O
• 分子量: 409.69548
• 纯 度: 90+%

产品别名

• 标题: 2,4,4,6-Tetrabromo-2,5-cyclohexadienone
• IUPAC标准名: 2,4,4,6-tetrabromocyclohexa-2,5-dien-1-one
• IUPAC传统名: 2,4,4,6-tetrabromocyclohexa-2,5-dien-1-one

产品登记号

• EC号: 243-638-7
• MDL号: MFCD00001589
• Beilstein号: 2048028
• CAS号: 20244-61-5

产品性质

• 纯度: 90+%
• 熔点: ca 125°C dec.
• GHS危险声明: H315-H319-H335
• 欧盟危险性物质标志: 刺激性(Irritant) (Xi)
• GHS警示性声明: P261-P305+P351+P338-P302+P352-P321-P405-P501A
• 危险公开号: 36/37/38
• 安全公开号: 26-37
• TSCA收录: 否

参考文献

• Selectively monobrominates phenols and unprotected arylamines mainly at the para position: J. Chem. Soc. (C), 3652 (1971). For tabulated results for the p-bromination of arylamines, see: Org. Synth. Coll., 6, 181 (1988).
• Reacts selectively with the terminal double bonds of polyenes: Chem. Lett., 283 (1976); Tetrahedron Lett., 26, 343 (1985). In aqueous systems, the products are the bromohydrins or, in methanol, their methyl ethers: Synthesis, 605 (1978) and references therein.
• In combination with PPh₃, can be used to convert alcohols and THP ethers to bromides with inversion of configuration: Tetrahedron Lett., 38, 1955 (1997). Silyl ethers also behave similarly: Tetrahedron Lett., 38, 7223 (1997).
• Versatile catalyst for acetalization and transacetalization of carbonyl compounds, preparation of acetonides from epoxides, and acylals from aldehydes: Bull. Chem. Soc. Jpn., 75, 2195 (2002).
• ɑ?-Unsaturated methyl ketones are brominated selectively at the methyl group: Tetrahedron, 29, 1625 (1973).
• For selective monobromination of imidazoles and indoles, see: J. Chem. Soc., Perkin 1, 2567 (1972).