What is the expected Markovnikov addition product from the addition of HI to 2-methyl-2-butene?
A) 2-iodopentane
B) 2-iodo-2-methylbutane
C) 1-iodo-2-methylbutane
D) 1-iodo-3-methylbutane
E) 2-iodo-3-methylbutane

Question

Quizplus · Accepted Answer

Markovnikov's rule states that in the addition of HX (where X is a halogen) to an alkene, the hydrogen atom attaches to the carbon with the greater number of hydrogen atoms, and the halogen attaches to the carbon with fewer hydrogen atoms. For 2-methyl-2-butene, this results in the addition of the iodine to the more substituted carbon, leading to 2-iodo-2-methylbutane.

What Is the Expected Markovnikov Addition Product from the Addition