Question

The major product of the following reaction is (Grignard Reagent with D2}O)

• A.

  

• B.

  

• C.

  

• D.

  

Hint:

Grignard reagents act as nucleophiles and readily react with D2}O or H2}O to form hydrocarbons with isotope substitution.

Answer 1

The Correct Option is D

The reaction involves formation of a Grignard reagent (PhMgBr) using Mg and dry ether.
This Grignard reagent reacts with D2}O to replace the MgBr with D (deuterium), giving C6}H5}–D as the major product.