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Synlett 1995; 1995(1): 58-60
DOI: 10.1055/s-1995-4872
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Preparation of Vinyl Tellurides via a Simplified Ylidation Reaction

C. C. Silveira* , G. Perin, A. L. Braga, N. Petragnani
  • *Departamento de Química - Universidade Federal de Santa Maria, 97119-900, Santa Maria, RS, Brazil
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Publication History

Publication Date:
31 December 2000 (online)

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Tellurophosphoranes are prepared by a transylidation reaction of an alkylidenetriphenylphosphorane and PhTeBr and from triphenylphosphonium dihalotellurolate on reaction with bases. The tellurophosphoranes react with aldehydes ”in situ” to give vinylic tellurides with preferential Z stereochemistry.

Vinylic tellurides - Wittig reaction - aldehyde - tellurophosphorane