Quiz - Aldehydes and Ketones | Aldehydes and Ketones – Part 2
What is the product of a Wolff-Kishner reduction?
An alkane
An alcohol
An enamine
An amine
Wolff-Kishner reduction:
Which of the following statements is correct about addition reactions of hydrogen cyanide to carbonyls?
The carbonyl oxygen is protonated by HCl
The carbonyl oxygen is protonated by HCN
The alkoxide intermediate is protonated by HCN
There is no proton transfer step in the mechanism of this reaction
Addition of HCN:
What is the product of a Wittig reaction?
A phosphorus ylide
An alkene
An alkyne
An aldehyde
Wittig reaction:
Which of the following statements is correct about Wittig reaction?
A cyclic intermediate called oxaphosphetane is formed
An enol forms and reacts with phosphorus ylide
Phosphonium ylides are electrophilic
NaOH can be used to generate phosphorus ylides
Wittig reaction:
What is the product of a Baeyer-Villiger oxidation?
An ester and a peroxycarboxylic acid
A ketone and a peroxycarboxylic acid
A ketone and a carboxylic acid
An ester and a carboxylic acid
Baeyer-Villiger Oxidation:
Which of the following alkyl substituents migrates the fastest in a Baeyer-Villiger reaction?
Primary alkyl
Secondary alkyl
Tertiary alkyl
Quaternary alkyl
With asymmetric ketones, esters can be selectively formed by migration of only one of the substituents. Migratory aptitudes in the Baeyer-Villiger reaction: Methyl < Primary Alkyl < Phenyl ~ Secondary Alkyl < Tertiary Alkyl