Diols as effective oocatalysts in the phase transfer catalyzed preparation of 1-alkynes from 1,2-dihalides

Eckehard V. Dehmlow, Rainer Thieser, Yoel Sasson, Ronny Neumann

Research output: Contribution to journalArticle

24 Citations (Scopus)


Bis-tertiary diols accelerate bis-eliminations of HX from 1,2-dihalides in the presence of an onium salt as phase transfer catalyst and potassium hydroxide as base. PEG 400 catalyzes the same elimination, but isomerizations from 1-alkyne to mixtures with the 2-alkyne and the 1,2-diene occur easily.

Original languageEnglish
Pages (from-to)3569-3574
Number of pages6
Issue number13
Publication statusPublished - 1986


ASJC Scopus subject areas

  • Biochemistry
  • Organic Chemistry
  • Drug Discovery

Cite this