Reaction of 2-silylmethylcyclopropyl ketones with in situ oxirane-derived aldehydes and formation of 2-hydroxymethyl tetrahydrofurans

The enolates formed from Lewis acid treatment of (2-trimethylsilylmethyl)cyclopropyl ketones react with in situ oxirane-derived aldehydes to generate aldol products that were easily transformed into 2-hydroxymethyl tetrahydrofurans under oxidation with m-chloroperoxybenzoic acid.