esters & derivatives Flashcards
1
Q
what is the functional group of esters?
A
R-C=O/O-R
2
Q
carboxylic acid + alcohol –>
A
ester + water
3
Q
ethanoic acid + methanol –>
A
methyl ethanoate + water
4
Q
describe how esters are named
A
- alcohol as alkyl group
- carboxylic as (oate)
5
Q
describe the process of esterification
A
- OH from carboxylic and H from alcohol combine to form water
- the C=O joins to the O from alcohol to form the ester
6
Q
state the 4 derivatives of carboxylic acids
A
- ester
- acyl chloride
- acid anhydride
- amide
7
Q
what is the functional group for acyl chlorides?
A
R-C=O/Cl
8
Q
what is the functional group for acid anhydrides?
A
R-C=O/O-C=O/R
9
Q
describe what an acid anhydride is
A
2 carboxylic acids joined via esterification, losing a water molecule
10
Q
acid anhydride + alcohol –>
A
ester + carboxylic acid (heat)
