TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (disclosed): A biindenyl-containing compound of formula (Ia) and dibromo biindenyl-containing compound of formula (Ib) are reacted in presence of amine compound of formula: Z-NH2, to obtain heteroacene compound (I). Preferred Definitions:    X=S.    SPECIFIC COMPOUNDS - 120 heteroacene compound are disclosed e.g. 11-(3-(8-oxatricyclo(7.4.0.02,7)trideca-2(7),3,5,10,12-pentaen-4-yl)phenyl)-9,13-dithia-11-azapentacyclo(10.7.0.02,10.03,8.014,19)nonadeca-1(12),2(10),3(8),4,6,7,14(19),15,17-nonaene of formula (Ic), 11-phenyl-9,13-dithia-11-azapentacyclo(10.7.0.02,10.03,8.014,19)nonadeca-1(12),2(10),3(8),4,6,14(19),15,17-octaene, 11-(3-phenylphenyl)-9,13-dithia-11-azapentacyclo(10.7.0.02,10.03,8.014,19)nonadeca-1(12),2(10),3(8),4,6,14(19),15,17-octaene, 11-(3-(anthracen-1-yl)phenyl)-9,13-dithia-11-azapentacyclo(10.7.0.02,10.03,8.014,19)nonadeca-1(12),2(10),3(8),4,6,14(19),15,17-octaene and 11-(6-(cyclohexa-1,3-dien-1-yl)pyridin-2-yl)-9,13-dithia-11-azapentacyclo(10.7.0.02,10.03,8.014,19)nonadeca-1(12),2(10),3(8),4,6,14(19),15,17-octaene.    EXAMPLE - 2-Iodo-4a,9b-dihydro-dibenzofuran (in g) (30), 3-amino phenylboronic acid (18.2), tetrakis triphenylphosphine palladium (6.4), toluene (450 ml), and ethanol (75 ml) were added, and stirred at room temperature. Then, sodium carbonate aqueous solution (2 M) was dripped to resultant product, stirred, cooled to room temperature, toluene and distilled water were added, and stirred. Distilled water was used to wash the organic layer and dried using anhydrous magnesium sulfate. The solvent was distilled after separating magnesium sulfate by filtration and purified, to obtain 3-dibenzofuran-2-yl-phenylamine (15) having yield of 57%. 2,2'-Dibromo-(3,3')bi(benzo(b)thiophenyl) (8.9), 3-dibenzofuran-2-yl-phenylamine (7.1), tris(dibenzylidene acetone)dipalladium (1.9), tri-tert-butylphosphine (1.3), sodium tert-butoxide (6.1) and toluene (250 ml) were mixed and stirred. The reaction solution was cooled, separated by filtration at room temperature and crystallized, to obtain white solid of 11-(3-(8-oxatricyclo(7.4.0.02,7)trideca-2(7),3,5,10,12-pentaen-4-yl)phenyl)-9,13-dithia-11-azapentacyclo(10.7.0.02,10.03,8.014,19)nonadeca-1(12),2(10),3(8),4,6,7,14(19),15,17-nonaene (4.6) having yield of 42%.