Methods of synthesis of 2,7-dioxabicyclo[3.2.1]octanes published over the past 10 years are summarized. Current methods for constructing the 2,7-dioxabicyclic system are of the following types: annulation of a new ring to an existing pyran or furan ring, tandem closing of both rings in differing order in one synthetic step, as well as recyclization and (3+3) cycloaddition reactions.