finkelstein reaction

Question

Finkelstein reaction involves:

RankGuru · Accepted Answer

The **Finkelstein Reaction** is a specific method for preparing alkyl iodides from alkyl chlorides or bromides.
- Reaction: $R-X + NaI \xrightarrow{	ext{acetone}} R-I + NaX \downarrow$ (where $X = Cl, Br$)
- Mechanism: It follows an **$S_N2$** pathway.
- Driving Force: Sodium chloride and sodium bromide are **insoluble in dry acetone** and precipitate out. This shifts the equilibrium forward according to Le Chatelier's principle.
- This is a classic example of **Halogen Exchange**.

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finkelstein reaction

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