Which product is formed by the chlorination of 2-butene?

Question

Quizplus · Accepted Answer

When 2-butene undergoes chlorination, it can result in substitution reactions at both the 2 and 3 carbons. This leads to the formation of two possible products: 2,3-dichlorobutane or 1,2-dichlorobutane. However, the 1,2-dichlorobutane product is less favorable because it involves the formation of a more stable tertiary carbocation intermediate. Therefore, the predominant product formed is 2,3-dichlorobutane. The other choices, 2-chlorobutane and 2,2-dichlorobutane, are not formed because they involve chlorination at only one carbon or at non-adjacent carbons, respectively.

Which Product Is Formed by the Chlorination of 2-Butene