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Synlett 1998; 1998(8): 900-902
DOI: 10.1055/s-1998-1802
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1,3-Bis(phenylsulfonyl)allene as a New Reagent for Cycloaddition Methodology

James R. Bull* , Nicholas S. Desmond-Smith, Steven J. Heggie, Roger Hunter, Feng-Chang Tien
  • *Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa; Fax 2721 689 7499; E-mail: Roger@psipsy.uct.ac.za
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Publication History

Publication Date:
31 December 2000 (online)

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1,3-Bis(phenylsulfonyl)allene 2 has been synthesised as a new reagent for cycloaddition methodology. In contrast to phenylsulfonylallene 1, thermal reaction of 2 with substituted 1,3-dienes gave both [2 + 2] as well as [2 + 4] cycloaddition products.

sulfonylallene - intermolecular [2 + 2] and [2 + 4] cycloaddition