Q.1- Illustrate in equations the following reactions:

a) Pyrrole with HCN/HCl.

b) Exhaustive methylation of tetrahydropyrrole.

c) Furfural with ethanolic KCN.

d) Furan with maleic anhydride.

e) Thiophene with n-butyl-lithium

f) Indole with CHCl3/NaOH.

g) Pyridine with methyl bromide.

Q.2- a) Write one method only for the synthesis of the following:

Thiophene    –    Indole    –    Coumarone    –    Thionaphthene