Question

The major product (P) in the following transformation is: 

• A. Hexane-1,6-diol
• B. 1,6-Dihydroxyhexan-2-one
• C. Hexane-1,2,6-triol
• D. 2-Ethoxyhexane-1,6-diol

Hint:

The reaction with borane and hydrogen peroxide is a well-known method for hydroboration-oxidation, which adds hydroxyl groups to an alkene.

Answer 1

The Correct Option is A

Step 1: Borane Reduction. The reaction begins with diborane (\(B_2H_6\)) and hydrogen peroxide (\(H_2O_2\)) in the presence of NaOH. This mixture converts the ethoxy group to a hydroxyl group, producing a diol at positions 1 and 6 of the hexane chain.

Step 2: Hydrolysis of the Organoborane. The organoborane intermediate undergoes hydrolysis to yield the target diol product.

Step 3: Conclusion. The resulting product is Hexane-1,6-diol. Therefore, option (1) is the correct answer.

Final Answer: \[ \boxed{\text{(1) Hexane-1,6-diol}} \]