Question

Exclusive of compounds with double bonds, four hydrocarbons are constitutional isomers of cis− and trans−1,2−dimethylcyclopropane. Select the names of these four compounds

Answer 1

The names of these constitutional isomers are cyclopentane, methylcyclobutane, ethylcyclopropane, and 1,1-dimethylcyclopropane.

Constitutional isomers have the same molecular formula. This means that they have the same number of carbon and hydrogen atoms, with a general formula of:
$C_{5} H_{12}$

When we consider the possible structures, the first option is cyclopentane, the simplest five-membered ring. When we reduce the ring to four carbons, we have the methylcyclobutane and when we reduce it to three carbons, we can arrange the other two carbons in an ethyl group or we can put two methyl groups on a single carbon atom to get the final two constitutional isomers.

You can learn more about constitutional isomers here:
brainly.com/question/9972986

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