The reaction of Br₂ with 1-methylcyclohexene, in the presence of ethylamine (EtNH₂), is expected to produce which of the following as the major product?

Question

Quizplus · Accepted Answer

The presence of ethylamine suggests that this is an elimination reaction, which means that a leaving group is eliminated along with a hydrogen ion (H+). In this case, the leaving group is likely to be one of the sulfur atoms in the Br₂ molecule. The 1-methylcyclohexene molecule can act as the hydrogen acceptor in this process. Looking at the possible products, only product D includes a leaving group (the sulfur atom) and a double bond between the two carbons that originally had the leaving group and the hydrogen. This is consistent with an elimination reaction. Therefore, product D is the most likely major product.

The Reaction of Br2 with 1-Methylcyclohexene, in the Presence of Ethylamine

The Reaction of Br₂ with 1-Methylcyclohexene, in the Presence of Ethylamine