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Synthesis 1988; 1988(5): 395-397
DOI: 10.1055/s-1988-27589
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Three-Carbon Homologating Agent: New Preparation of (3,3-Diisopropoxypropyl)triphenylphosphonium Bromide

Jacques Viala* , Maurice Santelli
  • *U A. au C.N.R.S. no 109, Av. Esc. Normandie-Niemen, F-13397 Marseille Cedex 13, France
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Publication Date:
20 August 2002 (online)

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A new and very efficient preparation of the title compound in one step using acrolein, triphenylphosphine and hydrobromic acid is described. This reagent used in the three-carbon homologation of carbonyl compounds gave β,γ-unsaturated aldehydes in good yields.