Which of the following would not react with benzene sulphonyl chloride in aq NaOH?
N, N-di methyl aniline
N- methyl aniline
Primary, secondary and tertiary amines are tested by hinsberg's reagent (C6H5SO2Cl) Tertiary amine doesnot react at all. N, N-dimethyl aniline is a tertiary amine.
Account for the following
(i) pKb of aniline is more than that of methyl amine.
(ii) Ethylamine is soluble in water whereas aniline is not
(iii) Methyl amine in water reacts with ferric chloride to precipitate hydrated ferric oxide
(iv) Although amino group is o- and p- directing in aromatic electrophilic substitution, aniline on nitration gives a substantial amount of m-nitroaniline
(v) Aniline does not undergo Friedel Crafts reaction
(vi) Diazonium salts of aromatic amines are more stable than those of aliphatic amines
(vii) Gabriel phthalimide synthesis is preferred for synthesising primary amines