Question

When phenyl magnesium bromide reacts with tertiary butanol, which of the following is formed?

• A. Benzene
• B. Tertiary butyl methyl ether
• C. Tertiary butyl benzene
• D. Phenol

Answer 1

Answer: (A)

When Phenyl Magnesium Bromide reacts with tert. butanol, benzene is obtained.

Grignard reagent reacts with compounds containing active hydrogen to form hydrocarbons corresponding to alkyl(or aryl) part of the reagent.

$C_6{H}_{5}MgBr+(C{H}_3{)}_{3}COH\to C_6{H}_6+(C{H}_3{)}_{3}COMgBr$.

Hence option B is correct.