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Chapter 16: Q16P (page 751)

Question:Can a cyanohydrin be prepared by treating a ketone with sodium cyanide?

Short Answer

Expert verified

Answer

A cyanohydrin can’t be prepared by treating a ketone with sodium cyanide.

Step by step solution

01

Protonation

Protonation is the addition of an extra proton to an atom. The proton of an acid can do it.

There must be an acid, required to protonate the oxygen of cyanohydrin.

02

Elimination of group

Without oxygen protonation, the cyanide group is eliminated and returns to the reactant.

Hence,acyanohydrin can’t be prepared by treating a ketone with sodium cyanide.

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Most popular questions from this chapter

Question: How many signals would the product of the following reaction show in

a.its 1H NMR spectrum?

b.its 13C NMR spectrum?

Question:Using bromocyclohexane as a starting material, how could you synthesize the following compounds?

What alcohols are obtained from the Reduction of the following compounds with sodium borohydride?

a. 2-methylpropanal b. cyclohexanone c. 4-tert-butylcyclohexanone d. acetophenone

a. Show how the following compounds can be prepared, using ethyne as one of the starting materials:

  1. 1-pentyn-3-ol
  2. 1-phenyl-2-butyn-1-ol
  3. 2-methyl-3-hexyn-2-ol

b. Explain why ethyne should be alkylated before, rather than after, nucelophilic addition.

Question:Explain why acetals do not react with nucleophiles.
See all solutions

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