Question

Identify the major product from the following reaction sequence:

Reactant: 1-phenylpropanol

• A.

  

• B.

  

• C.

  

• D.

  

Hint:

Oxidation of primary alcohols → acids; red P and Cl\(_2\) add chlorine at α-position to acid.

Answer 1

The Correct Option is D

Step-by-step transformation: 1. Oxidation (CrO\(_3\)/H\(_2\)SO\(_4\)) converts the primary alcohol to a carboxylic acid: \[ \text{CH}_2\text{OH} \rightarrow \text{COOH} \] 2. Chlorination using Cl\(_2\)/red P results in substitution at the α-carbon (adjacent to -COOH), forming: \[ \text{Cl-CH}_2\text{-CH}_2\text{-COOH} \] Hence, the major product is: α-chloro propionic acid derivative with a correct carbon skeleton as per the original straight chain.