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Explain the fact that in aryl alkyl ethers (i) the alkoxy group activates the benzene ringtowards electrophilic substitution and (ii) it directs the incoming substituents to ortho and para position in benzene ring. |
Answer» Solution :The alkoxy group INCREASES the ELECTRON density on the benzene ring and THEREFORE, activates the aromatic ring towards electrophilic substitution REACTION as given ahead :  As is clear, structures III, IV and V show high electron density at ortho and para positions and therefore, direct the incoming substituents to o - and p - POSITION in the benzene ring. |
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