Question

How would you name the structures of the twelve constitutional isomers for the cycloalkane formula C6H12?

Answer 1

Here are the names.

Explanation:

1. cyclohexane
2. methylcyclopentane
3. ethylcyclobutane
4. 1,1-dimethylcyclobutane
5. 1,2-dimethylcyclobutane
6. 1,3-dimethylcyclobutane
7. propylcyclopropane
8. (1-methylethyl)cyclopropane
9. 1-ethyl-1-methylcyclopropane
10. 1-ethyl-2-methylcyclopropane
11. 1,1,2-trimethylcyclopropane
12. 1,2,3-trimethylcyclopropane

"We leave it as an exercise for the student" to draw the twelve structures.