A facile entry into a stable functionalized bis(methylene)cyclobutene system

S. Braverman, E. V.K.Suresh Kumar, M. Cherkinsky, M. Sprecher, I. Goldberg

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


A parameter for the stabilization of the 3,4-bis(methylene)cyclobutene system has been identified. Appropriate functionalized derivatives, stable even in solution, have been conveniently prepared by tandem double [2,3]-sigmatropic rearrangement of conjugated dipropargylic sulfenates to diallenic disulfoxides and spontaneous cyclization of the latter. Stereochemical aspects are presented. (C) 2000 Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)6923-6927
Number of pages5
JournalTetrahedron Letters
Issue number35
StatePublished - 26 Aug 2000

Bibliographical note

Funding Information:
The financial support of this study by the Israel Science Foundations is gratefully acknowledged.


  • Acetylenes
  • Allenes
  • Cyclization
  • Cyclobutenes
  • Sulfur compounds


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