Chemical Science Revision Notes on Wolff-Kishner Reduction - Download PDF!

By Renuka Miglani|Updated : February 7th, 2022

Are you looking for some short and reliable notes during your CSIR-NET preparations? Then, you have come to a perfect place!

Candidates preparing for their CSIR NET exam might need to get some short study notes and strategies to apply while preparing for the key exam of their life. At this point, We at BYJU'S Exam Prep come up with short notes on Wolff-Kishner Reductionwhich comes under the Organic Chemistry section of the Chemical Science syllabus. 

Our experienced subject-matter experts have meticulously designed this set of short notes on Metallaboranes and Carboranes to give you the most standard set of study materials to be focused upon. In this cut-throat competitive world, students need to prepare themselves with the best study materials to help them in the learning process and for their future. So, here we are offering the best study notes that are reliable and can be used by the students during their preparations for the upcoming CSIR-NET 2022 exam.

Study Notes On Wolff-Kishner Reduction

The reaction involves the reduction of the carbonyl group of aldehyde and ketones to methylene groups (or, alkanes). This is a base catalysed reaction.

In this reaction, condensation of a carbonyl compound with hydrazine occurs to form a hydrazone; and when treated with base, it induces the reduction of carbon along with oxidation of hydrazine to gaseous nitrogen and yields corresponding alkane.

General Reaction - 


Reaction Mechanism -



the mechanism of Wolff Kishner reduction can also be represented as -


Example -



  1. This reaction is very specific for the reduction of a carbonyl group. Another functional group present in reactants remains intact.
  2. Unlike Clemmensen reduction, Wolff-Kishner does not fail with acid-sensitive compounds or high molecular weight compounds.
  3. Wolff-Kishner reduction can also be used for the synthesis of long-chain alkyl groups in aromatic rings.

Short Notes on Wolff-Kishner Reduction - Download PDF Now

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