(a)
Interpretation:
To find out which reduction reaction can be used to carry out the transformation among the Wolff-kishner, Clemmensen, or Raney-nickel.
Concept introduction:
The Wolff-Kishner reduction is used to convert the carbonyl (C=O) group of a
(b)
Interpretation:
To find out which reduction reaction can be used to carry out the transformation among the Wolff-kishner, Clemmensen, or Raney-nickel.
Concept introduction:
The Wolff-Kishner reduction is used to convert the carbonyl (C=O) group of a ketone or aldehyde into a CH2 group. The Clemmensen reduction is also used to reduce the C=O group of a ketone or aldehyde. The Raney-nickel reduction is used to reduce the carbonyl group of a ketone or aldehyde to a methylene group. The Wolff-Kishner reduction should be avoided if there is a functional group present that is susceptible to reaction under basic conditions or with strong nucleophiles. The Raney-nickel reduction should be avoided if there is a functional group present that is susceptible to reaction with nucleophilic thiols or with H2 in the presence of a metal catalyst.
(c)
Interpretation:
To find out which reduction reaction can be used to carry out the transformation among the Wolff-kishner, Clemmensen, or Raney-nickel.
Concept introduction:
The Wolff-Kishner reduction is used to convert the carbonyl (C=O) group of a ketone or aldehyde into a CH2 group. The Clemmensen reduction is also used to reduce the C=O group of a ketone or aldehyde. The Raney-nickel reduction is used to reduce the carbonyl group of a ketone or aldehyde to a methylene group. The Wolff-Kishner reduction should be avoided if there is a functional group present that is susceptible to reaction under basic conditions or with strong nucleophiles. The Raney-nickel reduction should be avoided if there is a functional group present that is susceptible to reaction with nucleophilic thiols or with H2 in the presence of a metal catalyst.
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Chapter 19 Solutions
Organic Chemistry: Principles And Mechanisms: Study Guide/solutions Manual (second)
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