Question

The conversion of ethyl bromide using sodium iodide and dry acetone, this reaction is know as ______.

पर्याय

• Swarts reaction 

• Finkelstein reaction 

• Sandmeyer reaction 

• Stephen reaction

Answer 1

The conversion of ethyl bromide using sodium iodide and dry acetone, this reaction is know as Finkelstein reaction.

Explanation:

Alkyl chlorides or bromides reacts with Nal in dry acetone to give alkyl iodide. This reaction is known as Finkelstein reaction.

$$\mathrm{R}-\mathrm{X}+\mathrm{NaI}⟶\mathrm{RI}+\mathrm{NaX}[\mathrm{X}=\mathrm{Cl},\mathrm{Br}]$$

e.g., $$\mathrm{C}{\phantom{A}}_2\mathrm{H}{\phantom{A}}_5\mathrm{Br}+\mathrm{NaI}⟶\mathrm{C}{\phantom{A}}_2\mathrm{H}{\phantom{A}}_5\mathrm{I}+\mathrm{NaBr}$$