Select the correct name for the following compound.
A)2-ethyl-4-propylcycloheptene
B)3-ethyl-5-propylcycloheptene
C)6-ethyl-4-propylcycloheptene
D)7-ethyl-5-propylcycloheptene
E)3-ethyl-5-propylcyclohexene

Question

Select the correct name for the following compound. 
A)2-ethyl-4-propylcycloheptene 
B)3-ethyl-5-propylcycloheptene 
C)6-ethyl-4-propylcycloheptene 
D)7-ethyl-5-propylcycloheptene 
E)3-ethyl-5-propylcyclohexene

Quizplus · Accepted Answer

The compound has a cycloheptene ring with two substituents: ethyl (C2H5) and propyl (C3H7). The numbering of the ring begins with the carbon that is nearest to both substituents, which is the carbon between them. Then, the next substituent is assigned the lower number possible, which is 3. Therefore, the correct name is 3-ethyl-5-propylcycloheptene.

Select the Correct Name for the Following Compound