question_answer

Reagents which can be used to bring about the following conversion is

A) (i) \[LAH/ether\] (ii)\[Glycol+HCl,\text{ }{{H}_{3}}{{O}^{\oplus }}\]     

B) (i) \[Glycol+HCl,\text{ }{{H}_{3}}{{O}^{\oplus }}\](ii) \[LAH/ether\]

C) (i) \[Glycol+HCl\] (ii) \[NaB{{H}_{4}}/{{C}_{2}}{{H}_{5}}OH,\,{{H}_{3}}{{O}^{\oplus }}\]      

D) (i)\[B{{H}_{3}}/THF,\] (ii) \[Glycol+HCl,{{H}_{3}}{{O}^{\oplus }}\]

Correct Answer: B

Solution :

[b]  group is protected by cyclic ketal formation and then ester is reduced by LAH