Which of the alcohols listed below would you expect to react most rapidly with PBr₃? A)CH₃CH₂CH₂CH₂CH₂CH₂OH B)(CH₃CH₂)₂CH(OH)CH₂CH₃ C)(CH₃CH₂)₂CHOHCH₃ D)(CH₃CH₂)₃COH E)(CH₃CH₂)₂C(CH₃)OH

Question

Quizplus · Accepted Answer

The alcohol CH3OH (A) would react most rapidly with PBr₃ because it is a primary alcohol, meaning the carbon atom attached to the hydroxyl group is directly attached to only one other carbon atom. This makes it more reactive towards substitution reactions, including with PBr₃, compared to the other choices which are either secondary or tertiary alcohols.

Which of the Alcohols Listed Below Would You Expect to React