Question

What is finkelstein reaction of halogen exchange?

Answer 1

Answer:

$Finkelstein Reaction. The Finkelstein reactionis a Substitution Nucleophilic Bimolecular reaction ( S_{N}2 Reaction) involves theexchange of halogen atom. ... It is an organic reaction that uses an alkyl halide exchange into another alkyl halide through a reaction wherein the metal halide salt is used.$

Answer 2

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Answer:

Finkelstein's reaction is a method of preparation of alkyl iodides from alkyl chlorides or alkyl bromides.

In this reaction ,alkyl chlorides or bromides are treated with NaI in presence of acetone to form alkyl iodides.

R-X +NaI —————-> R-I + NaX

In acetone,sodium iodide is soluble ,but NaCl or NaBr are insoluble. Hence NaCl or NaBr so formed get precipitated,thus do not interfere the reaction on formation.