Novel Deprotection Method of Aryl Aldehyde Bisulfite Adducts with Recoverable [BPy]FeCl₄ as a New Ionic Liquid Catalyst

M.M. Khodaei*, A.R. Khosropour* and  S. Ghaderi

Department of Chemistry, Razi University, Kermanshah 67149, Iran

(Received 10 November 2005, Accepted 3 January 2006)

      The aryl aldehyde bisulfite adducts were deprotected to the parent aldehydes in n-butylpyridinium tetrachloroferrate as a catalyst and solvent with excellent yields and high chemoselectivity.  

Keywords: Aldehyde, Bisulfite, Ionic liquid, Chemoselective