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Questions
Write the chemical reaction involved in Wolff-Kishner reduction.
Write the equations involved in the following reaction:
Wolff-Kishner reduction
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Solution
In Wolff-Kishner reduction, the carbonyl group (>C = O) is reduced to a methylene group (–CH2–) with the elimination of nitrogen gas.
\[\begin{array}{cc}
\phantom{......}\backslash\phantom{............................}\backslash\phantom{........................................}\backslash\phantom{...................................}\\
\ce{C = O + ->[H2N-NH2][-H2O]C = NH2->[KOH/ethylene glycol][heat] CH2 + NH2+ H2O}\\
\phantom{......}/\phantom{............................}/\phantom{........................................}/\phantom{...................................}\\
\end{array}\]
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