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聚乙二醇 400

产品号 B21992 公司名称 Alfa Aesar
CAS号 25322-68-3 公司网站 http://www.alfa.com
分子式 C2H6O2 电 话
分子量 62.06784 传 真
纯 度 电子邮件
保 存 Chembase数据库ID: 103244

产品价格信息

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产品别名

标题
Polyethylene glycol 400
IUPAC标准名
ethane-1,2-diol
IUPAC传统名
ethylene glycol
别名
PEG 400

产品登记号

默克索引号 147568
MDL号 MFCD01779601
CAS号 25322-68-3

产品性质

熔点 4-8°C
折射率 1.4660
TSCA收录

产品详细信息

参考文献

  • Polyethylene glycols can act as effective solvents and low-cost phase-transfer catalysts by complexing with cations (see Appendix 2). Examples of reactions promoted by these species:
  • Nucleophilic displacements of benzyl halides: Synthesis, 184 (1977). Permanganate oxidations: J. Org. Chem., 43, 1532 (1978); Tetrahedron Lett., 3543 (1979). Dichromate oxidations; similar results to carcinogenic HMPA, and to crown ethers.
  • Good solvent for borohydride reductions: Tetrahedron Lett., 4581 (1979). Stereoselective reduction of alkynes to cis-alkenes using NaBH4 and a catalytic amount of PdCl2 in dichloromethane-PEG: J. Chem. Soc., Chem. Commun., 515 (1982).
  • Wacker oxidation of olefins to methyl ketones: Tetrahedron Lett., 26, 2263 (1985). Conversion of acids to peracids; see Potassium peroxydisulfate, A15310. Recyclable medium for rapid Baylis-Hillman reactions (see Ammonium bismuth citrate, A17003): Tetrahedron Lett., 45, 5865 (2004).