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(i) Explain why an alkylamine is more basic than ammonia. (ii) How would you convert (a) aniline to nitrobenzene, ""(b) aniline to iodobenzene ? |
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Answer» Solution :(i) `R to NH_(2) ""H-underset(underset(H)(|))(ddot(N))-H` The basic character of alkylamine and ammonia is due to the presence of a lone pair of electrons on N. Alkyl group has `+I` inductive effect. It INCREASES the electron density on nitrogen. Therefore, alkylamine is more basic than ammonia. (II) (a) ANILINE to nitrobenzene :  This can be ACHIEVED as under :  (b) Aniline to iodobenzene : This can be achieved as under : 
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