TECHNOLOGY FOCUS - POLYMERS - Preparation (claimed): A cyclic compound of formula: A-H and cyclic compound of formula: B'-H are coupled in the presence of hypervalent iodine reagent to obtain the heterocyclic containing aromatic compound. Preferred Compound: The compound (1) is preferably chosen from compound of formula (2) having condensed thiophene and pyrrole rings, compound of formula (3), compound of formula (4, preferably 4a) having condensed pyrrole and N-substituted pyrrole rings, compound of formula (5 or 5a) having two N-substituted pyrrole rings, compound of formula (6) having condensed 3,4-ethylene dioxythiophene and benzene rings, more preferably formulae (2-8), preferably 2-(2,3-dihydro-thieno(3,4-b)(1,4)dioxin-5-yl)-1H-pyrrole.R1-R18=H or organic group, at least one is organic group;Rx=R1 or halo;andR19,R20,Rn3,Rn4=organic group.When both R1 and R2 are H, R3 and R4 are organic group which may combine to form a ring structure and when both R1 and R2 are organic group, they may combine to form ring structure or ethylene dioxy group. When both R5 and R6, R9 and R10, R13, R14 are H, R7 and R8, R11 and R12 and R15 and R16 are organic groups which may combine to form a ring structure and when both R5 and R6 are organic groups, they may combine to form ring structure or ethylene dioxy group, and when both R9 and R10, R13 and R14 are organic groups, they may combine to form ring structure.    TECHNOLOGY FOCUS - POLYMERS - Preferred Process: The oxidation polymerization is chemical polymerization method using hypervalent iodine reagent as oxidizing agent. EXAMPLE - Dichloromethane (10 ml), 3,4-ethylene dioxythiophene (4 mmol), bromo trimethylsilane (4 mmol), iodobenzene diacetate (6 mmol), N-phenylpyrrole (4 mmol), 1,1,1,3,3,3-hexafluoro-2-propanol (1 ml) and trifluoroacetic acid (4 mmol) were stirred for 4 hours to obtain N-phenylpyrrole-ethylene dioxythiophene coupled product (788.4). The obtained coupled product was dissolved in diethylene glycol ethylmethyl ether and p-toluene sulfonic acid iron (III) was added to obtain a polymerizable composition. The film formed using the composition had favorable solvent solubility, ultraviolet ray resistance, heat resistance, favorable surface resistivity and total light transmittance.