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Synlett 1990; 1990(7): 423-424
DOI: 10.1055/s-1990-21115
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Facile Cyclodehydrations of Diols and Amino Alcohols with Phosphonium Anhydrides

James B. Hendrickson* , Md. Sajjat Hussoin
  • *Department of Chemistry, Brandeis University, Waltham, Massachusetts 02254-9110, USA
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Publikationsdatum:
08. März 2002 (online)

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Cyclic ethers and amines with 3-, 5- and 6-membered rings are easily formed from the corresponding diols or amino alcohols, using triphenylphosphonium anhydride ((Ph3P+)2O, 2OTf-]. The reagent is simply prepared in situ from triphenylphosphonium oxide and trifluoromethanesulfonic anhydride, and the cyclodehydration generally proceeds in good yield at room temperature.