Aldehyde and Ketone

Question 1

Two ways to prepare aldehydes

Answer 1

1. Oxidation of primary Alcohol
2. Partial Reduction with DIBAH

Question 2

Primary Alcohol React with DMP

Answer 2

Alcohol turns into aldehyde

Question 3

Partial Reduction with DIBAH to make aldehyde

Answer 3

Reactant: DIBAH

Reagent: Ester
Result: Alcohol + Aldehyde

Question 4

Secondary Alcohol React with DMP

Answer 4

Alcohol turns into ketone

Question 5

What happen when alkene under ozonolysis?

Answer 5

Alkene is cleave to form C=O

Reagent
1. O3
2. Zn/H3O+

Question 6

Preparing Ketone from Aromatic Rings

Answer 6

Fridel Craft Acylation

Reagent: RCO-Cl / AlCl3

Question 7

Oxidation of Aldehyde

Answer 7

Aldehyde to Carboxylic Acid

Reagent: CrO3, KmnO4, Na2Cr2O7

Question 8

Grignard Reagent on Aldehyde and Ketone

Answer 8

Reagent: MgX-R / H3O+

Double Bonded O turn into Alcohol
Central Carbon is bonded to R

Question 9

Cyanohydrin Formation on Aldehyde and Ketone

Answer 9

Double Bond O turns into Alcohol
Central Carbon is bonded to CN

Reagent: HCN, H2O / OH

Question 10

Hydration of Aldehyde and Ketone

Answer 10

Geminial diol is formed

Reagent: H3O+ or -OH/H2O

Question 11

Woff Kishmer Reaction2

Answer 11

Converting Aldehyde or Ketone into Alkane

Question 12

Formation of Iminine

Answer 12

1. Nucleophilic Attack
2. Protonation of Oxygen
3. Deprotonation of Nitrogen
4. Protonation of Oxygen to form Water
5. Elimination of Water
6. Deprotonation of Nitrogen to form Iminine

Question 13

Formation of Enamine

Answer 13

1. Protonation of Oxygen
2. Nucleophilic Attack
3. Deprotonation of Nitrogen
4. Protonation of Oxygen to form Water
5. Elimation of Water
6. Deprotonation of Alpha proton