57674-94-9Relevant articles and documents
Cumulated Ylides, XIV - Phosphacumulene Ylides - Building Blocks for the Synthesis of Heterocyclic Compounds
Bestmann, Hans Juergen,Schmid, Guenter,Sandmeier, Dieter,Schade, Gerold,Oechsner, Helmut
, p. 1709 - 1719 (2007/10/02)
Phosphacumulene ylides 1 and acidic compounds 4 combine to give phosphoranes 5, which cyclize by an intramolecular reaction (mostly Wittig reaction) with formation of heterocycles 7.