Transcript Alcohols and Ethers

Alcohols and Ethers
Section 13.2 from Chemical Ideas
C2H6O
H
H
H
O
H
H
H
H
H
O
H
H
H
H
 There are two Isomers
with this molecular
formula
 Ethanol and
methoxymethane
Ethanol
 Belongs to the
homologous series
called alcohols
 All members of the
group contain the
hydroxyl functional
group…………. –OH
 They only differ in the
length of their
hydrocarbon chain
H
H
H
O
H
H
H
Methoxymethane
H
H
O
H
H
H
H
 Belongs to the
homologous series
called ethers
 All ethers contain the
alkoxy group…… -OR
Alcohols
They are named from the parent alkane by
omitting the final –e and adding -ol
 CH3-OH
 methanol
 CH3-CH2-OH
 ethanol
 CH3-CH2-CH2-OH
 propan-1-ol
 CH3-CH2-CH2-CH2-OH
 butan-1-ol
Ethers
 Ethers are derived from alkanes by substituting an
alkoxy group ( -OR ) for an H atom, for example
 CH3 – CH2 - O- CH2-CH3
 ethoxyethane
 CH3 – CH2 – CH2- O- CH3
 Methoxypropane
 Note that the longer hydrocarbon chain is chosen
as the parent alkane