Write the structure of the product formed on reaction of aniline with each of the following:
(a) Hydrogen bromide
(b) Excess methyl iodide
(c) Acetaldehyde
(d) Acetaldehyde and hydrogen (nickel catalyst)
(e) Acetic anhydride
(f) Benzoyl chloride
(g) Sodium nitrite, aqueous sulfuric acid, 0-5°C
(h) Product of part (g), heated in aqueous acid
(i) Product of part (g), treated with copper(I) chloride
(j) Product of part (g), treated with copper(I) bromide
(k) Product of part (g), treated with copper(I) cyanide
(l) Product of part (g), treated with hypophosphorous acid
(m) Product of part (g), treated with potassium iodide
(n) Product of part (g), treated with fluoroboric acid, then heated
(o) Product of part (g), treated with phenol
(p) Product of part (g), treated with N,N-dimethylaniline