Esters Flashcards
1
Q
naming esters
e.g CH3COOC2CH3
A
alcohol prefix -yl
carboxylic acid/derivative suffix -anoate
ethyl ethanoate
2
Q
- Carboxylic acid + alcohol
- methanoic acid + methanol
- HCOOH + CH3OH
- catalyst
- reversible reaction so need to
A
- ester + water
- methyl methanoate + water
- HCOOCH3 +
- conc sulfuric acid
- separate product as formed. large ester = reflux & fractional distillation. small ester = distil
3
Q
- Acid anhydride + alcohol
2. ethanoic acid + methanol
A
- ester + carboxylic acid
2. methyl ethanoate +
4
Q
acid anhydride
how to make an acid anhydride
A
carboxylic acid + carboxylic acid
RCOOCOR
5
Q
hot aq acid hydrolysis
A
- splits ester into carboxylic acid and alcohol
6
Q
hot aq alkali (NaOH) hydrolysis
A
- splits ester into carboxylate salt + alcohol
7
Q
- Acyl chloride + alcohol
ROCl
A
ester + hydrogen chloride