Functional Group General Formula Example
Amide
Amine
Disulfide
Ester
Ether
Ketone
Salt (Carboxylate)
Thiol
H
H
H
H
H C C S H
ethanethiol
SH R SH
sodium acetate
H O
H
H C C O−.. .Na+
O
R C O−.. .M+
O
C O−.. .M+
H O
H
H
H
H
H
H C C C C H
methyl ethyl ketone
O
R CR'
O
C
H
H
H
H
H
H
H C O C C H
ethyl methyl ether
O R OR'
H O
H
H
H
H
H
H C C O C C H
ethyl acetate
O
R C OR'
O
C O
H
H
H
H
H C S S C H
dimethyl disulfide
S S R S SR'
methylamine
H
H
H C N
H
H
R N
R'
R"
N
acetamide
H
H
O
H C C N
H
H
O
R C N
H
H
O
C N
H
H
Organic Chemistry