Question

28. (a)Give equations for the following reactions:
(i)phenol is treated with con.HNO3 3 41
(ii)propene is treated with B,H, followed by H,O,/OH39
(iii)Sodium tert butoxide is treated with CH,C1​

Answer 1

Answer:

The reaction of HNO

3

with phenol is given.

As a result of +R effect of the (OH) group, the electron density in the benzene ring increases, thereby facilitating the attack by an electophile. In other words, the presence of (OH) group activates the benzene ring towards electrophilic substitution reactions. Further, since the electron density is relatively higher at the two o- and one p-position and therefore, electrophilic substitution occurs mainly at o- and p-position.

solution

Explanation:

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