二苯并-18-冠-6醚

• 产品号: A13133
• CAS号: 14187-32-7
• 分子式: C20H24O6
• 分子量: 360.40096
• 纯 度: 98+%

产品别名

• 标题: Dibenzo-18-crown-6
• IUPAC标准名: 2,5,8,15,18,21-hexaoxatricyclo[20.4.0.0^9,^1^4]hexacosa-1(26),9,11,13,22,24-hexaene
• IUPAC传统名: dibenzo-18-crown-6

产品登记号

• MDL号: MFCD00005098
• EC号: 238-041-3
• CAS号: 14187-32-7
• 默克索引号: 142602
• Beilstein号: 1162153

产品性质

• 纯度: 98+%
• 沸点: 380-384°C/679mm
• 熔点: 160-164°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
• RTECS编号: HP5386000
• 安全公开号: 26-37
• TSCA收录: 是

参考文献

• Catalyst for the formation of phenacyl esters from phenacyl bromides and K salts of carboxylic acids in acetonitrile: Synth. Commun., 26, 1747 (1996).
• Catalyst for the halogenative cleavage of epoxides with Br₂ or I₂, giving halohydrins in high yields: J. Org. Chem., 63, 1455 (1998).
• See also 18-Crown-6, A11249 and Appendix 2.
• Comparison of the rates of displacement of F^- in 1-fluoro-2- or 4-nitrobenzene with KOMe and KO-t-Bu in the presence of this crown ether gave a result (t-BuO^- >> MeO^-) opposite to the pattern observed in its absence: J. Chem. Soc., Perkin 2, 55 (1973).
• Promotes the generation of bromochlorocarbene from Chlorodibromomethane, A16938: Syntheis, 783 (1977); Tetrahedron, 33, 363 (1977), and of dibromocarbene from Bromoform, A11904: Org. Synth., 75, 98 (1997).
• In combination with Benzyltriethylammonium chloride, A13268, promotes the oxidative decarboxylation of arylacetic acids with NaIO₄ to give high yields of the aryl aldehydes: Indian J. Chem. B, 35B, 151 (1996). Under the same conditions, phenacyl bromides are converted to benzoic acids.