Question

multiple choice 2 points
identify the correct iupac name for the structure shown below.
1 - tert - butyl - 4 - bromo - 7 - chlorocycloheptane
1 - bromo - 4 - tert - butyl - 5 - chlorocycloheptane
5 - bromo - 1 - tert - butyl - 2 - chlorocycloheptane
1 - tert - butyl - 2 - chloro - 5 - bromocycloheptane
1 - bromo - 4 - chloro - 5 - tertbutylcycloheptane

Explanation:

Step1: Identify parent chain

The parent chain is cycloheptane.

Step2: Number the ring

Number the ring to give substituents the lowest - possible numbers. Bromine gets the lowest number (1).

Step3: Name substituents

The substituents are bromo, tert - butyl, and chloro. They are named in alphabetical order. So the correct name is 1 - bromo - 4 - tert - butyl - 5 - chlorocycloheptane.

Answer:

B. 1 - bromo - 4 - tert - butyl - 5 - chlorocycloheptane