Quiz - Aldehydes and Ketones - 1 | Aldehydes and Ketones - Part 2

Organic Chemistry 2 - Quiz - Aldehydes and Ketones - 1

1

What is the product of a Wolff-Kishner reduction?

Wolff-Kishner reduction:

2

Which of the following statements is correct about addition reactions of hydrogen cyanide to carbonyls?

Addition of HCN:

3

What is the reactivity of an α,β-unsaturated aldehyde or ketone?

Reactivity of an α,β-unsaturated aldehyde or ketone:
- typical reactions of alkenes and carbonyls
- 1,4-additions (and sometimes 1,2-additions)

4

What is the product of a Wittig reaction?

Wittig reaction:
 

5

Which of the following statements is correct about Wittig reaction?

Wittig reaction:

6

What is the product of the reaction between water and pent-3-en-2-one?

7

What is the product of a Baeyer-Villiger oxidation?

Baeyer-Villiger Oxidation:
 

8

Which of the following alkyl substituents migrates the fastest in a Baeyer-Villiger reaction?

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

9

In the formation of imines from aldehydes and ketones, which component acts as the nucleophile?

Amines act as nucleophiles because they have a lone pair of electrons on the nitrogen atom, which can attack the partially positive carbonyl carbon, leading to imine formation.

10

What is the major difference in the outcome when comparing the Wolff-Kishner reduction to hydride addition to the carbonyl of an aldehyde?

Wolff-Kishner reduction specifically converts a carbonyl compound into a hydrocarbon by removing oxygen as water, whereas hydride addition to an aldehyde produces an alcohol.