Problem: The carbonyl group of an aldehyde or ketone may be reduced via several different methods. a) Select all viable methods for aldehyde/ketone reduction. -Na2Cr2O7 and H2SO4 -Wolff-Kishner method -Baeyer-Villiger method -NH3, H2, and Raney Ni -1) LiAIH4, 2) H2O -Clemmensen method -KMnO4 and H2SO4 b) Of the reduction methods, which one would be best performed under acidic conditions? -Clemmensen method -Na2Cr2O7 and H2SO4 -NH3, H2, and Raney Ni -KMnO4 and H2SO4 -Baeyer-Villiger method -Wolff-Kishner method -1) LiAIH4, 2) H2O

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We’re being asked to determine a) all viable methods to reduce an aldehyde and b) which reduction method works best in acidic conditions.


a) Reduction of an aldehyde converts it into a 1° alcohol or alkane. For this problem, we need to analyze each given method and determine if it’s an oxidation or reduction.

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Problem Details

The carbonyl group of an aldehyde or ketone may be reduced via several different methods. 

a) Select all viable methods for aldehyde/ketone reduction. 

-Na2Cr2O7 and H2SO4 

-Wolff-Kishner method 

-Baeyer-Villiger method 

-NH3, H2, and Raney Ni 

-1) LiAIH4, 2) H2

-Clemmensen method 

-KMnOand H2SO4 

b) Of the reduction methods, which one would be best performed under acidic conditions? 

-Clemmensen method 

-Na2Cr2O7 and H2SO4 

-NH3, H2, and Raney Ni 

-KMnO4 and H2SO4 

-Baeyer-Villiger method 

-Wolff-Kishner method 

-1) LiAIH4, 2) H2O

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Baeyer-Villiger Oxidation concept. You can view video lessons to learn Baeyer-Villiger Oxidation. Or if you need more Baeyer-Villiger Oxidation practice, you can also practice Baeyer-Villiger Oxidation practice problems.