Norbornane-exo-cis-2,3-diyl 1′,2′-phenyl­ene orthocarbonate

The title compound (systematic name: 4,7-methano-2,2′-spirobi­[1,3-benzodioxole]), C(14)H(14)O(4), is an asymmetric spiro ester of orthocarbonic acid and two diols, viz. the aromatic benzene-1,2-diol and the aliphatic vicinal norbornane-exo-cis-2,3-diol. The orthocarbonate mol­ecule is close to having non-crystallographic C (s) symmetry. The five-membered ring stemming from the aliphatic diol has an envelope conformation. C—O bonds including the spiro-C atom span an approximately 0.07 Å range, but are within 0.02 Å of the respective distances in a density functional theory calculation, i.e. the distance difference is not caused by packing forces. Accordingly, the crystal packing is characterized by weak C—H⋯O and C—H⋯π inter­actions.