Utilization of pyridoxal acetal salts as water-triggered, slow-release pro-fragrances†
Abstract
The synthesis of pyridoxal acetal salts and the controlled-release of the alcohols in the presence of neutral pH water is described. The rate of release was monitored by 1H NMR and was found to be dependent on the concentration of water in the sample. The acetal salts are stable in the absence of moisture and show promise as a vitamin-based pro-fragrance delivery system.