Russian Journal of Organic Chemistry

, Volume 38, Issue 7, pp 970–976 | Cite as

Reactions of 2-Alkoxypropenals with Thiols in Neutral and Acid Media

  • N. A. Keiko
  • E. A. Funtikova
  • L. G. Stepanova
  • Yu. A. Chuvashev
  • L. I. Larina
Article

Abstract

Addition of thiols to 2-alkoxypropenal in neutral medium at 20°C in the absence of a catalyst occurs regioselectively, following the Markownikoff pattern. The resulting 2-alkoxy-2-R-thiopropanals are capable of undergoing spontaneous isomerization to 1-alkoxy-1-R-thiopropanones. The addition and isomerization processes are accelerated by heating to 60°C or in the presence of acid catalysts (TsOH, HCl). The reaction is also accompanied by partial disproportionation of 2-oxopropanal O,S-acetals to give O,O- and S,S-acetals.

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Copyright information

© MAIK “Nauka/Interperiodica” 2002

Authors and Affiliations

  • N. A. Keiko
    • 1
  • E. A. Funtikova
    • 1
  • L. G. Stepanova
    • 1
  • Yu. A. Chuvashev
    • 1
  • L. I. Larina
    • 1
  1. 1.Irkutsk Institute of Chemistry, Siberian DivisionRussian Academy of SciencesIrkutsk

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