Which reagent combination is utilized in the Clemmensen reduction to convert a carbonyl group () into a methylene group ()?
Answer and explanation
Correct answer: D. and concentrated
- Step 1: Clemmensen reduction uses zinc amalgam () in concentrated hydrochloric acid () to reduce aldehydes and ketones directly to hydrocarbons.
Answer
and concentrated .
Why not the others: Hydrazine with in glycol is the Wolff-Kishner reduction; reduces carbonyls to alcohols; and with quinoline is Lindlar's catalyst for Rosenmund reduction.
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