Question

Which of the following reactions is used for the conversion of alkyl chloride to alkyl iodide?

• A. Fittig reaction
• B. Finkelstein reaction
• C. Swartz reaction
• D. Friedel Craft's reaction

Hint:

To avoid confusing the two halogen exchange reactions, use this mnemonic:
Finkelstein is for Iodides (F and I don't match).
Swartz is for Fluorides (S and F don't match).

Answer 1

The Correct Option is B

Step 1: Know the goal.
We are swapping a chlorine on an alkyl chloride for an iodine.

Step 2: Recall the method.
Heating the chloride with sodium iodide in dry acetone does this. The NaCl that forms drops out and pushes the reaction forward.

Step 3: Name it.
This halogen swap is the Finkelstein reaction. Swartz makes fluorides, Fittig and Friedel-Crafts do other jobs.
\[ \boxed{\text{Finkelstein reaction}} \]