endo-2,4-Dibromo-3a,4,7,7a-tetrahydro-4,7-methanoindene-1,8-dione 8-Ethylene Acetal

In the title compound, C₁₂H₁₀Br₂O₃, the Csp²-Br bond is found to be shorter than the Csp³-Br bond, while the bonds involving the apical C atom (the methano bridge) have distances between those observed for the corresponding bonds in the chloro-substituted compound 1,2,4,5,6,7,8,9- octachloro-10,10-dimethoxytricyclo[5.2.1.0^2,6]deca-4,8-diene-3-one [Galesic, Matijasic & Bruvo (1985). Acta Cryst. C41, 1662-1664] and between the distances observed for the corresponding bonds in similar compounds without halogen substitutents.