1.

Show the exact structure of the product (or products) of each EAS reaction below.State whether each reaction is expected to be faster or slower than the corresponding reaction of benzene.

Answer»





Solution :(a)
Each phenyl group acts as an activating ortho/para director to the other (equivalent)ring. This reaction would be faster than the nitration of benzene.
(b) The carbonyl group acts as a deactivating META director to both(equivalent ) rings. This reaction will be slower than the nitration of benzene.
(c)
The OXYGEN -containing ring can be viewed as an OR group and an R group attached to the benzene ring. Although both groups are activating , the OR group is more strongly activating , so the position ortho and para to it will be brominated. This reaction will be faster than the bromination of benzene, which requires a CATALYST.
(d)
The reaction will be faster than that of benzene because of the activating NATURE of `OCH_(3)` group will be dominating over the deactivating group CN.


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