Reactions of Carbonyls
- Created by: Chloe Woodley
- Created on: 12-04-13 20:30
View mindmap
- Reactions of Carbonyls
- Oxidation Reactions
- Fehling's/Benedict's Solution
- Ketones do not react
- Aldehydes oxidise to a carboxylic acid and a red/brown precipitate forms
- Tollens' Reagent
- Ketones do not react
- Aldehydes oxidise to form a carboxylic acid. A silver mirror forms on the test tube
- Potassium Dichromate (VI)
- Ketones do not oxidise
- Aldehydes oxidise to a carboxylic acid
- Fehling's/Benedict's Solution
- Reduction Reactions
- Ketones will reduce to a secondary alcohol with LiAlH4
- Aldehydes reduce to a primary alcohol wit LiAlH4
- Addition Reactions
- Both aldehydes and ketones undergo addition reactions with hydrogen cyanide. The C=O bond is attacked
- The Iodoform Reaction
- Ketones react with the iodine to make triiodo-ketone and then reacts with the alkali to form triiodomethane
- The only aldehyde to react with iodine is ethanol because it contains a methyl group next to the carbonyl group
- 2,4-DNP (Condensation)
- This is a red/orange solid that both aldehydes and ketones react with to form yellow crystalline solids.
- Compounds can be identified using this reaction as the boiling point are specific to chemicals
- Water is eliminated
- Oxidation Reactions
Similar Chemistry resources:
Teacher recommended
Comments
No comments have yet been made