carboxylic acids and acyl chlorides Flashcards
why are small carboxylic acids very soluble
polar (electrons drawn to O)
forms H bonds with polar molecules
carboxylic acid + metal ->
ethanoic acid + magnesium ->
2CH3COOH + Mg ->
salt + hydrogen
magnesium ethanoate
(CH3COO)2Mg + H2
carboxylic acid + carbonate ->
ethanoic acid + sodium carbonate ->
CH3COOH + NaCO3 ->
salt + carbon dioxide + water
sodium ethanoate + carbon dioxide + water
CH3COONa + CO2 + H2O
carboxylic acid + base (alkali) ->
ethanoic acid + sodium hydroxide ->
CH3COOH + NaOH ->
salt + water
CH3COONa + H2O
carboxylic acid + base (metal oxide)->
ethanoic acid + magnesium oxide ->
CH3COOH + MgO ->
salt + water
(CH3COO)2Mg + H2O
acyl chloride
functional group
suffix e.g. CH3COCl
COCl
-oyl chloride
ethanoyl chloride
acyl chloride
how to make an acyl chloride
carboxylic acid + SOCl2 (OH on acid replaced with Cl)
acyl chlorides easily lose their
chlorine
- acyl chloride + water ->
- ethanoyl chloride + water ->
- CH3COCl + H2O ->
- carboxylic acid + hydrogen chloride gas
- ethanoic acid +
- CH3COOH + HCl
- acyl chloride + alcohol ->
- ethanoyl chloride + methanol ->
- CH3COCl + CH3OH ->
- what kind of reaction
- ester + hydrogen chloride gas
- methyl ethanoate +
- CH3COOCH3
- vigorous
- acyl chloride + ammonia ->
- ethanoyl chloride + ammonia ->
- CH3COCl + NH3 ->
- primary amide + hydrogen chloride gas
- ethanamide +
- CH3CONH2 + HCl
- acyl chloride + amine ->
- ethanoyl chloride + amine ->
- CH3COCl + CH3NH2 ->
- secondary amide + hydrogen chloride gas
- N-methylethanamide
- CH3CONHCH3 + HCl
- acyl chloride + phenol ->
- ethanoyl chloride + phenol ->
- CH3COCl + C6H5OH ->
- why is it better to use acyl chloride rather than carboxylic acid?
- ester + hydrogen chloride
- phenyl ethanoate
- CH3COOC6H5 + HCl
- faster to use acyl chloride