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

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(Received 10 November 2005, Accepted 3 January 2006)

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����� 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. �

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Keywords: Aldehyde, Bisulfite, Ionic liquid, Chemoselective