Synthesis of Acylals from Aromatic Aldehydes and Their Deprotections Catalyzed by Synthetic Phosphates: Practical and Ecological Approach

Effective and clean preparation of aromatic aldehyde acylals in the presence of synthetic phosphates (flourapatite and hydroxyapatite doped with ZnCl2 and ZnBr2) and acetic anhydride was easily achieved under solvent-free conditions at room temperature at high yields (86% - 97%).

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