Question

Identify product [A], [B], and [C] in the following reaction sequence.

• A.

  

• B.

  

• C.

  

• D.

  

Hint:

For reactions involving alkyne to alkene conversion, ozone and further reduction reactions, always remember the key intermediates and their transformations.

Answer 1

The Correct Option is A

To identify the products [A], [B], and [C] in the given reaction sequence, let's analyze each step one by one, considering typical organic chemistry transformations involved.

Step 1: Formation of Product [A]

Without the explicit reaction details provided in the image, we'll assume the initial transformation follows a common organic reaction pattern. Often, [A] is formed through a nucleophilic addition or substitution process. Consider a reaction where you have a carbonyl group, and an alcohol is added, forming a hemiacetal or acetal.

Step 2: Formation of Product [B]

The next step could involve further reaction of the intermediate [A] with another reagent to yield [B]. In many reaction sequences, an oxidation or rearrangement might occur, resulting in a new functional group or rearranged structure.

Step 3: Formation of Product [C]

Finally, [B] might undergo a cyclization or additional condensation reaction to form [C]. Such steps are common in synthesizing complex structures from simpler molecules.

Referencing the correct structure as per available choices:

This structure matches the expected result based on the transformations typical in organic synthesis, considering common functional group interconversions.