三乙基氧鎓四氟硼酸盐

• 产品号: A14420
• CAS号: 368-39-8
• 分子式: C6H15BF4O
• 分子量: 189.9873128
• 纯 度: 95%, stab. with 3-5% diethyl ether

产品别名

• 标题: Triethyloxonium tetrafluoroborate
• IUPAC标准名: tetrafluoroboranuide; triethyloxidanium
• IUPAC传统名: triethyloxidanium tetrafluoroborate

产品登记号

• CAS号: 368-39-8
• Beilstein号: 3598090
• EC号: 206-705-1
• MDL号: MFCD00044423

产品性质

• 纯度: 95%, stab. with 3-5% diethyl ether
• 熔点: 84-89°C
• GHS危险声明: H228-H314-H318
• 欧盟危险性物质标志: 腐蚀性(Corrosive) (C)
• 欧盟危险性物质标志: 易燃性(Flammable) (F)
• GHS警示性声明: P210-P280-P303+P361+P353-P305+P351+P338-P310
• 危险公开号: 11-34
• RTECS编号: RR4584700
• 安全公开号: 16-26-36/37/39-45
• 保存注意事项: Moisture Sensitive
• TSCA收录: 是
• 联合国危险货物等级: 4.1
• 联合国危险货物编号: UN2925
• 联合国危险货物包装类别(PG): II

参考文献

• Trialkyloxonium salts, also known as Meerwein's salts, are powerful alkylating agents: Chem. Ber., 89, 209, 2060 (1956). For a brief feature on uses of Meerwein's salts in synthesis, see: Synlett, 195 (2004).
• In combination with a hindered base, e.g. N-Ethyldiisopropylamine, A11801, is a convenient reagent for the conversion of carboxylic acids to their ethyl esters by O-alkylation: Tetrahedron Lett., 4741 (1971); Org. Synth. Coll., 6, 576 (1988).
• Secondary and tertiary amides are O-alkylated to give immonium salts and imino ethers, respectively. Reduction with borohydride provides an effective amide to amine conversion: Tetrahedron Lett., 61 (1968):
  
• Likewise, N-alkylation of nitriles results in their activation to reduction by triethylsilane to give aldehydes, via the imines: Synthesis, 420 (1973); J. Chem. Soc., Chem. Commun., 45 (1974); J. Org. Chem., 46, 602 (1981).
• For further reactions of trialkyloxonium salts, see Trimethyloxonium tetrafluoroborate, A15175.