15 Name
Chapter 18 Naming Esters Practice Worksheet
Esters:
Systematic names of esters are based on the name of the corresponding carboxylic acid. Remember,
esters look like this:
General Formula:
O
║
R ― C ― O ― R′
↑ ↑
acyl group alkyl gro up
The alkyl group is named like a substituent using the –yl ending. This is followed by a space. The acyl portion of the
name (what is left over) is named by replacing the –ic acid suffix of the corresponding carboxylic acid with –ate.
O O
║ ║
CH3 ― CH2 ― C ― O ― CH3 CH3 ― C ― O ― CH2 ― CH3
methyl propanoate ethyl ethanoate
Naming Suffix: alkyl group (carboxylic acid name) -ate
1. Name the following compounds.
O
║
a. CH3 ― CH2 ― C ― O ― CH2 ― CH2 ― CH2 ― CH3
O Name: butyl propanoate
║
b. CH3 ― CH2 ― CH2 ― CH2 ― O ― C ― CH2 ― CH2 ― CH2 ― CH3
Name:
O
║
c. CH3 ― O ― C ― CH3 Name:
O
║
d. CH3 ― O ― C ― CH2 ― CH2 ― CH3
Name:
O
║
e. CH3 ― CH2 ― CH2 ― O ― C ― CH2 ― CH2 ― CH2 ― CH2 ― CH2 ― CH2 ― CH3
Name:
O
║
f. CH3 ― CH2 ― O ― C ― CH2 ― CH2 ― CH2 ― CH2 ― CH3
Name:
