1,2-亚乙烯基双(三苯基溴化膦)单水合物

• 产品号: L00956
• CAS号: 54770-27-3
• 分子式: C38H32Br2P2
• 分子量: 710.416202
• 纯 度: 98%

产品别名

• 标题: 1,2-Vinylenebis(triphenylphosphonium bromide) monohydrate
• IUPAC标准名: triphenyl[(E)-2-(triphenylphosphaniumyl)ethenyl]phosphanium dibromide
• IUPAC传统名: triphenyl[(E)-2-(triphenylphosphaniumyl)ethenyl]phosphanium dibromide

产品登记号

• EC号: 259-334-2
• CAS号: 54770-27-3
• MDL号: MFCD00040548
• Beilstein号: 3583793

产品性质

• 纯度: 98%
• 熔点: ca 236-250°C
• 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
• 保存注意事项: Hygroscopic
• TSCA收录: 否

参考文献

• Conjugate addition of alcohols in the presence of triethylamine, followed by elimination and removal of the second phosphonium salt by base-induced cleavage, leads to vinyl ethers: Synthesis, 736 (1975). Similarly, other nucleophiles (e.g. phenols or thiols) can be used to replace one of the phosphonium groups by addition-elimination: Bull. Soc. Chim. Fr., 1421 (1974). With bifunctional nucleophiles, cyclization can occur to give an intermediate for the formylolefination of aldehydes by the Wittig reaction: Synthesis, 826 (1978):