In ethers, an oxygen atom is connected to two alkyl or aryl groups. The general formula for ether is R−O−R'.
- R and R' may be the same.
Ethers, in which the group R and R' are the same are called simple or symmetrical ethers.
- R and R' may be different.
Ethyl methyl ether
Ethers, in which the groups R and R' are not the same are called mixed or unsymmetrical ethers
Ethers are further classified as :
- Aliphatic ethers
- Aromatic ethers
In aliphatic ethers, R and R' are both alkyl groups.
Ethyl propyl ether
In aromatic ethers, either one or both the groups are aromatic rings.
Methyl phenyl ether