Solution Found!
The energy difference between cis- and trans-but-2-ene is about 4 kJ/mol; however, the
Chapter 7, Problem 7-47(choose chapter or problem)
The energy difference between cis- and trans-but-2-ene is about 4 kJ/mol; however, the trans isomer of 4,4-dimethylpent2-ene is nearly 16 kJ/mol more stable than the cis isomer. Explain this large difference.
Questions & Answers
QUESTION:
The energy difference between cis- and trans-but-2-ene is about 4 kJ/mol; however, the trans isomer of 4,4-dimethylpent2-ene is nearly 16 kJ/mol more stable than the cis isomer. Explain this large difference.
ANSWER:Step 1 of 3
In dimethylpent2-ene, bulky groups are present across the double bond.
In case of cis4,4-dimethylpent2-ene, the bulky groups are present along the same as shown in the figure.
Due to this, there is a lager steric hindrance. This causes repulsion between the methyl group and tertiary butyl group.