Russian journal of organic chemistry

Direct synthesis of γ-substituted phthalides by cyclization of benzyl radicals generated from o-(arylmethyl) benzoic acids

NO Mahmoodi, M Salehpour

Index: Mahmoodi; Salehpour Russian Journal of Organic Chemistry, 2003 , vol. 39, # 12 p. 1760 - 1763

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Citation Number: 8

Abstract

Abstract Direct oxidation of o-(arylmethyl) benzoic acids with sodium peroxysulfate-copper (II) chloride in water yields γ-substituted phthalides. The reaction is highly regioselective, and the corresponding γ-butyrolactones are the only products formed through intermediate stable arylmethyl radicals.