Synthesis of 1,1-Diacetates Catalyzed by Cellulose Sulfonic Acid from Aldehydes and Acetic Anhydride

摘要

1,1 -Diacetates have been synthesized in good to excellent yields via a reaction of corresponding aldehydes and acetic anhydride in the presence of cellulose sulfonic acid as a heterogeneous catalyst at room temperature. The protection of aldehydes generated an anhydro-dimer as single product under similar reaction conditions. The catalysis is equally applicable for the deprotection of acylal in acetonitrile.