Question

Product formed in the following reaction is:

• A. 1
• B. 2
• C. 3
• D. 4

Hint:

Raney Ni is the "S-remover"—it's most famous for cutting sulfur right out of organic molecules.

Answer 1

The Correct Option is C

Step 1: Concept Raney Nickel (Ra-Ni) with hydrogen is a versatile reagent used for catalytic hydrogenation and desulfurization.

Step 2: Meaning In this specific substrate, Ra-Ni can reduce the alkene and cleave the C-S bond (desulfurization).

Step 3: Analysis The vinyl group is hydrogenated to a propyl group. Simultaneously, the thiophenyl group (S-Ph) is removed and replaced by hydrogen via hydrodesulfurization. The benzyl ether group remains intact under these standard Ra-Ni conditions.

Step 4: Conclusion Based on the transformation of the alkene to an alkyl chain and the removal of the sulfur group while retaining the ether, Product 3 is the correct result. Final Answer: (C)