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What is the von Baeyer name of the compound shown?

  1. Abicyclo[3.3.0]octane
  2. Bbicyclo[3.2.1]octane
  3. Cbicyclo[2.2.2]octane
  4. Dbicyclo[4.2.0]octane

Answer: C

The compound is bicyclo[2.2.2]octane. Its two bridgeheads are connected by three bridges of two carbons each, and the skeleton has 2 + 2 + 2 + 2 = 8 carbons.
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