Oxidation of methyl 3-(4-methoxyphenyl)propynoate in the system CF 3COOH-CH2Cl2-PbO2 at 0-2°C within 2 h affords in a preparative yield of 55% a product of oxidative dimerization, dimethyl 2,3-bis(4-methoxyphenylcarbonyl)but-2-ene-1,4- dicarboxylate (II) whose double bond is in E-configuration according to X-ray diffraction data.

Original languageEnglish
Pages (from-to)860-862
Number of pages3
JournalRussian Journal of Organic Chemistry
Volume39
Issue number6
DOIs
StatePublished - 1 Jun 2003

    Scopus subject areas

  • Organic Chemistry

ID: 44014604