Syntheses of Polymerizable Acetals. II. Readily Hydrolyzable Acetals from Citronellol and Vitamins

Three perfume acetals and four vitamin acetals have been synthesized by the acid-catalyzed reactions of vinylbenzyloxy- and methoxy-substituted benzaldehydes with citronellol and the reactions of vinylbenzaldehyde with vitamins B6, C, B1 and B2, respectively. The acid hydrolyses of these novel acetals readily released citronellol and vitamins under mild conditions, some accelerations of the hydrolysis rate by the electron-donating para substituents being observed in the case of the perfume acetals.