Substituent effect on controlled release of fragrant aldehydes from pH-triggered nicotinoylhydrazone-based precursors

Abstract

Fragrance precursors are assorted class of pro-fragrances that could realize the controlled release of aroma compounds. Herein, nicotinoylhydrazone-based pH-triggered fragrance precursors (NTA1–NTA4) have been prepared by reacting nicotinoylhydrazine and a...