The correct structure for bicyclo[2.2.2]octane-2-carboxylic acid is:
A)I
B)II
C)III
D)IV

Question

The correct structure for bicyclo[2.2.2]octane-2-carboxylic acid is: 
A)I 
B)II 
C)III 
D)IV

Quizplus · Accepted Answer

The bicyclo[2.2.2]octane-2-carboxylic acid consists of a bicyclic system with three bridgehead carbons, which is indicated by the naming convention [2.2.2]. The carbon atoms in the bicyclic system are numbered 1-8 with carbons 1-4 forming one ring and carbons 4-8 forming the other ring. The carboxylic acid group is attached to carbon 2 of the bicyclic system. Choice B has the correct placement of the carboxylic acid on carbon 2 and the correct numbering of the bicyclic system.

The Correct Structure for Bicyclo[2.2.2]octane-2-Carboxylic Acid Is