Electrophilic 8ublititutioD reactions In ethers , -OR is ortho , para directing group and activate . the aromatic ring towards electrophilic substitution reaction .
Ethyl phenyl ester C6H5OC2H5 is also , known as phenetole .
Uses of Ethers
1 . Dimethyl ether is used as refrigerant and as a solvent at low temperature .
2 . Diethyl Ether is used as an anaesthesia in surgery .