What is the major product in the following reaction?
Solution:
We have a tertiary substrate (bromine is attached to carbon which is attached to three other carbons) and a strong base, OH-. Please note KOH consists of K+ and OH-. OH- is a strong base. Therefore, E2 would be the major reaction, resulting in a double bond. We always want to make the most substituted double bond, making choice D the correct answer.
