4.6 Article

A convenient and mild chromatography-free method for the purification of the products of Wittig and Appel reactions

Journal

ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 10, Issue 17, Pages 3531-3537

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ob07074j

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Funding

  1. Irish Research Council for Science, Engineering and Technology (IRCSET)
  2. Science Foundation Ireland (SFI) [08/RFP/CHE1251, 09/IN.1/B2627]
  3. Science Foundation Ireland (SFI) [08/RFP/CHE1251] Funding Source: Science Foundation Ireland (SFI)

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A mild method for the facile removal of phosphine oxide from the crude products of Wittig and Appel reactions is described. Work-up with oxalyl chloride to generate insoluble chlorophosphonium salt (CPS) yields phosphorus-free products for a wide variety of these reactions. The CPS product can be further converted into phosphine.

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