A Novel Synthesis of 4-Methyl-1,3-Dioxolane-4-Carbaldehydes by Epoxidation of 5-Methyl-4H-1,3-Dioxins and Acid-Catalyzed Rearrangement - Wattenbach, Carsten; Maurer, Martin; Frauenrath, Herbert (Synlett, 1999)