Organic Chemistry Practice Problems Alkene Stability Practice Problems Solution: Choose the more stable alkene in each of the follo...

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Solution: Choose the more stable alkene in each of the following pairs. Explain your reasoning. (a) 1-Methylcyclohexene or 3-methylcyclohexene 

Problem

Choose the more stable alkene in each of the following pairs. Explain your reasoning. 

(a) 1-Methylcyclohexene or 3-methylcyclohexene 

Solution

We’re being asked to determine the more stable alkene between 1-methylcyclohexene and 3-methylcyclohexene.


Recall that alkenes are stabilized by hyperconjugation, which is the charge delocalization of σ bonds to an adjacent, p-orbital. This means additional R-groups increases stability.


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