ChemInform Abstract: The Monoacetalization of Glyoxal: A Direct Synthesis of 2,2‐Dimethoxy and Diethoxy Ethanals.

Abstract

When glyoxal (I) is treated with a seven‐ to tenfold excess of the alcohols (II) in the presence of zirconium disulfate, the monoacetals (III) are predominantly formed, together with only minor amounts of the diacetals (IV).