Comparison of Iodination of Methoxylated Benzaldehydes and Related Compounds using Iodine/Silver Nitrate and Iodine/Periodic Acid

Abstract

Iodination of the three methoxybenzaldehydes, four dimethoxybenzaldehydes, vanillin, and piperonal by two methods were compared. Iodine and periodic acid gave better yields for iodination for the methoxybenzaldehydes, whereas iodine and silver nitrate generally gave better yields for the rest of the compounds.

Keywords:

• benzaldehydes
• iodination
• periodic acid
• silver nitrate