(E)-3-(2,2-Dibromospiro[2.4]heptan-1-yl)propenenitrile

The X-ray crystal structure of the title compound, C 10 H 11 Br 2 N, reveals that the three- and five-membered rings are fused to one another in a spiro fashion and that there is an E arrangement of substituents about the carbon-carbon double bond.