Synthesis and structure of novel sulfur bridged cyclic di- and tetraalkynes

S. Braverman, M. Cherkinsky, M. L. Birsa, S. Tichman, I. Goldberg

Research output: Contribution to journalArticlepeer-review


Some novel sulfur bridged 13- to 30-membered cyclic di- and tetraalkynes derived from 1,2-, 1,3- and 1,4-dihydroxybenzene and 1,2-bis(bromomethyl)benzene were synthesized and their structures confirmed by X-ray analysis. The unexpected formation of 2,6-divinyl-1,4-dithiin during Na2S/alumina induced cyclization was also observed and the reaction mechanism is discussed.

Original languageEnglish
Pages (from-to)7485-7488
Number of pages4
JournalTetrahedron Letters
Issue number42
StatePublished - 15 Oct 2001


  • 1,4-dithiin
  • Cyclic dipropargylic sulfide
  • Cyclic tetrapropargylic sulfide


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