乙氧基乙炔

• 产品号: A14245
• CAS号: 927-80-0
• 分子式: C4H6O
• 分子量: 70.08984
• 纯 度: ca 50% w/w in hexanes

产品别名

• 标题: Ethoxyacetylene
• IUPAC标准名: ethoxyethyne
• IUPAC传统名: ethoxy-ethyne
• 别名: Ethyl ethynyl ether

产品登记号

• Beilstein号: 741882
• EC号: 213-164-5
• MDL号: MFCD00009247
• CAS号: 927-80-0

产品性质

• 纯度: ca 50% w/w in hexanes
• 沸点: 55-56°C
• 密度: 0.718
• 闪点: -28°C(-18°F)
• 折射率: 1.3800
• GHS危险声明: H225-H304-H361-H373-H315-H303-H401-H411
• 欧盟危险性物质标志: X
• 欧盟危险性物质标志: 易燃性(Flammable) (F)
• 欧盟危险性物质标志: 环境危害性(Nature polluting) (N)
• GHS警示性声明: P210-P280H-P281-P301+P330+P331-P315-P403+P235
• 危险公开号: 11-38-48/20-62-51/53-65
• RTECS编号: KN9900000
• 安全公开号: 9-16-29-33-36/37-61-62
• TSCA收录: 否
• 联合国危险货物等级: 3
• 联合国危险货物编号: UN1993
• 联合国危险货物包装类别(PG): II

参考文献

• Supplied in solution to reduce polymerization. Quantities offered relate to gross weight of solution.
• Undergoes [2+2] cycloaddition reactions with ketenes to give cyclobutenone derivatives: J. Org. Chem., 38, 1451 (1973).
• Adds to carbonyl compounds in the presence of ZnBr₂: Can. J. Chem., 54, 2310 (1976).
• The Grignard reagent, prepared by exchange with ethyl magnesium bromide, adds to carbonyl compounds to give carbinols which rearrange in acid to ɑ?-unsaturated acids. Alternatively, partial reduction of the adduct followed by hydrolysis provides a route to ɑ?-unsaturated aldehydes: J. Chem. Soc., 1823 (1949); Rec. Trav. Chim., 82, 305 (1963):
  
• Rearrangement by BF₃ etherate leads directly to the ethyl ester: Rec. Trav. Chim., 78, 664 (1959); Chem. Lett., 1129 (1981); 241, 1271 (1982). See also Chloroacetaldehyde diethyl acetal, L07661.
• Has been used as a mild dehydrating agent in peptide synthesis: Rec. Trav. Chim., 77, 1153 (1958), and for conversion of sensitive dicarboxylic acids to their anhydrides: J. Org. Chem., 33, 3808 (1968).