ChemInform Abstract: Action of Lewis Acids on Aromatic Acetals.

Abstract

090ChemInform Abstract The reaction of the benzaldehyde acetals (I) with antimony pentachloride or ferric chloride in anhydrous 1,2-dichloroethane is investigated. The products formed in this reaction are the benzyl alkyl ethers (II), the alkyl benzoates (III), the benzyl esters (IV), the α,β-unsaturated aldehydes (V), the benzaldehydes (VI), and the benzyl alcohols (VII). The p-nitrobenzaldehyde acetal (Ie)yields only p-nitrobenzaldehyde (VIc) accompanied by a trace of p-nitrobenzyl alcohol (VIIc). The mechanism is discussed. (No yields given).