Carboxylic Acids - OCR

Revision notes on carboxylic acids (Chains, Ring and Spec) for A2 Chemistry.

HideShow resource information
Preview of Carboxylic Acids - OCR

First 105 words of the document:

Carboxylic Acids and their Derivatives
Carboxylic Acids
Chemical Properties of Carboxylic Acids
They Behave as Acids
Acid ­ `Proton (H+) Donor'
a) Acid + Base Salt + water
Ethanoic acid + NaOH Sodium Ethanoate + Water
Benzoic acid + KOH Potassium Benzoate + Water
Ethanoic acid + Calcium Hydroxide Calcium Ethanoate + H2O
2CH3COOH + Ca(OH)2 + 2H2O
b) Acid + Carbonate Salt + CO2 + H2O
2CH3COOH + Na2CO3 2CH3COO­Na+ + CO2(g) + H2O
Written By [email protected]

Other pages in this set

Page 2

Preview of page 2

Here's a taster:

Acid + Reactive metal Salt + H2(g)
CH3COOH + Na CH3COO­Na+ + H2(g)
­ Ethanol + Na Sodium ethoxide + ½H2(g)
CH3CH2OH + Na CH3CH2ONa + ½H2
d) Alcohols + Carboxylic Acids Ester + H2O
2Ethanol + Benzene-1,4-dioic Acid Diethyl
e) Carboxylic Aid + Chlorinating Agent Acyl(Acid)chlorides
i. Ethanoic Acid + PCl5 + HCl + POCl3
Written By [email protected]…read more

Page 3

Preview of page 3

Here's a taster:

Ethanoic Acid + SOCL2 + HCl + SO2
Very reactive and used to make other chemicals
o `good synthetic chemical'
o `Lachromatory' ­ Makes you cry
f) Carboxylic Acids can be reduced
Carboxylic Acids are difficult to reduce
o need a powerful reducing agent, LiAlH4 (non aq)
CH3COOH + [4] CH3CH2OH + H2O
Hydrolysis of an Ester
Ester + H2O Alcohol + Carboxylic Acid
a) Acid catalysed hydrolysis of an ester
Propyl ethanoate + H2O
Propene + Ethanoic Acid
Written By [email protected]…read more

Page 4

Preview of page 4

Here's a taster:

Base catalysed hydrolysis of an ester
Propyl ethanoate + H2O
Propene + Ethanoic Acid
The carboxylic acid will react with the base to form a salt once the hydrolysis reaction is done
Acid + Base + Alcohol Salt + Alcohol
Acyl­Chlorides (Acid ­ Chlorides)
Chemical properties of Acyl­Chlorides
All reactions are very violent and spit
HCl is given off and as observation seen as `Misty white Fumes'
Acyl­Chlorides react with anything that has a H in its functional group
1.…read more

Page 5

Preview of page 5

Here's a taster:

Making an Ester
Methyl Propanoyl Chloride + TriChloroPhenol TriChlorophenyl MethylPropanoate
­ This is 100% conversion, there is no equilibrium state
4. Manking a Peptide
Ethanoyl Chloride + Ethylamine EthylEthanamide
Written By [email protected]…read more


No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all resources »