Questions: Which of the following structures have the correct common name? Aryl chloride I → Br Allyl bromide II Benzylic chloride Vinyl fluoride IV II and III III and IV II and IV I and II

Solution Steps

Structure I is labeled aryl chloride. Aryl refers to an aromatic ring substituent, but the structure shown is a simple alkene chain with a chlorine substituent. This name is incorrect.

Structure II is labeled allyl bromide. Allyl refers to a propene substituent with a substitution at the allylic position. The structure correctly shows a propene chain with bromine substituted at the allylic position. This name is correct.

Structure III is labeled benzyl chloride. Benzyl refers to a toluene substituent with a substitution at the benzylic position. The structure correctly shows a toluene molecule with chlorine substituted at the benzylic position. This name is correct.

Final Answer