Vanillin and its closest homologs and analogs (ortho- vanillin, isovanillin, vanillal, anisaldehyde, veratralde- hyde) can serve as convenient and available synthons for the chemical modification and preparation using them of biologically active substances for a wide range of ap- plications [1]. We formerly reported on the syntheses of substituted 1,3-dioxolanes, derivatives of 1,2-propanediol [2]. Derivatives of 1,3-dioxolane and of 1,3-dioxane exhibit a high ...