WO2007105638-A1  MERLIC C.A. ET AL.: &apos;Synthesis of indolocarbazoles via sequential palladium catalyzed cross-coupling and benzannulation reactions&apos; TETRAHEDRON LETTERS vol. 38, no. 44, 1997, pages 7661 - 7664, XP004093389;  TSUCHIMOTO T. ET AL.: &apos;Easy access to aryl- and heteroaryl-annulated[a]carbazoles by the indium-catalyzed reaction of 2-arylindoles with rpopargyl ethers&apos; ANGEWANDTE CHEMIE INTERNATIONAL EDITION vol. 44, no. 9, 2005, pages 1336 - 1340, XP002448772;  WIERSEMA A.K. ET AL.: &apos;Thiophene analogues of fluorene. IV. An Unusual behaviour of a cyclopentadithiophenone in the reaction with dienophiles&apos; ACTA CHEMICA SCANDINAVICA vol. 24, no. 7, 1970, pages 2653 - 2655, XP003017754GB2450050-A  Acta Chemica Scandinavica, 1947-1973, Vol. 24, No. 7, 1970, pages 2653-2655;  Angewandte Chemie International Edition Vol. 44, No. 9, 2005, pages 1336-1340;  Tetrahedron Letters Vol. 38, No. 44, 1997, pages 7661-7664GB2450050-B  &quot;Anomaly in Palladium-Catalyzed Phenylethynylation...&quot;, JOC, 1983, 48, 5273-5280, Dougherty et al.;  &quot;Palladium-Catalyzed Annulation of Alkynes&quot;, Topics in Organometallic Chemistry, 2005, vol 14, 147-182, Larock.;  Acta Chemica Scandinavica, 1947-1973, Vol. 24, No. 7, 1970, pages 2653-2655;  Angewandte Chemie International Edition Vol. 44, No. 9, 2005, pages 1336-1340;  Department of Chemistry, Imperial College, &quot;Palladium catalysed cross coupling reactions&quot; [online]. Available from http://web.archive.org/web/19990224202038/http://www.ch.ic.ac.uk/local/organic/4-palladium.html [Published Feb 24 1999. Accessed Sep 27 2010];  Tetrahedron Letters Vol. 38, No. 44, 1997, pages 7661-7664CN101395160-B  JP 2-15079A 1990.01.18;  JP tekai 2004-269519A 2004.09.30;  Merlic C A. (2) .Synthesis Indolocarbazoles &quot; sequential palladium vias catalyzed cross-coupling and benzannulation reactions. &quot;Tetrahedron Letters&quot;. 1997, the 38 (44), the 7661-7664 page.;  Tsuchimoto T. (2) .Easy Access Aryl- and self Heteroaryl- Annulated[a]carbazoles by Indium-Catalyzed Reaction of the 2-Arylindoles unlock Propargyl Ethers. &quot;Angewandte Chemie International Edition&quot;. 2005, first 44 ring first 1336-1340 page.;  Wiersema A K. (2) .Thiophene Analogues Fluorene. &quot; IV. Unusual Behaviour n of a Cyclopentadithiophenone III Reaction unlock the Dienophiles. &quot;Acta Chemica Scandinavica&quot;. 1970, the 24 (7), the 2653-2655 page.US8299272-B2  Department of Chemistry, Imperial College, &quot;Palladium catalysed cross coupline reactions&quot; [online]. Available from http://web.archive.org/web/19990224202038/http://www.ch.ic.ac.uk/local/organic/4-palladium.html [Published Feb. 24, 1999. Accessed Sep. 27, 2010].;  Dougherty, TK. Anomaly in Palladium-Catalyzed Phenylethynylation of 2,2&apos;-Dihalobiphenyls: Formation of Alkylidenefluorenes. J. Org. Chem. 1983, vol. 48, pp. 5274.;  Hudkins, RL. Synthesis and Mixed Lineage Kinase Activity of Pyrrolocarbazole and Isoindolone Analogs of (+)K-252a. J. Med. Chem. 2007, vol. 50, p. 435, scheme 5a.;  K. Kanno et al., &quot;Chromium-Mediated Synthesis of Polycyclic Aromatic Compounds from Halobiaryls&quot;, Organic Letters, vol. 7, No. 24, (Sep. 14, 2005), pp. 5453-5456.;  Larock, RC. Carbopalladation of Nitriles: Synthesis of 3,4-disubstituted 2-aminonaphthalenes and 1,3-benzoxazine Derivatives by the Palladium-Catalyzed Annulation of Alkynes by (2-iodophenyl) acetonitrile. J. Org. Chem. 2003, vol. 68, p. 339.;  Larock, RC. Palladium-catalyzed Annulation of Alkynes. Top. Organomet. Chem. 2005, vol. 14, pp. 147-182.;  M.J. Janssen et al., &quot;The Synthesis, Oxidation, and Electronic Spectra of Four Dithienothiophenes&quot;, J. Org. Chem., vol. 36, No. 12, (1971), pp. 1645-1648.;  Merlic, CA. Synthesis of Indolocarbazoles via Sequential Palladium Catalyzed Cross-Coupling and Benzannulation Reactions. Tetrahedron Letters. 1997, vol. 38, p. 7663.;  Merlic, Craig A. et al., Synthesis of indolocarbazoles via sequential palladium catalyzed cross-coupling and benzannulation reactions, Tetrahedron Letters, (1997), 38 (44), pp. 7661-7664.;  P. Coppo et al., &quot;Synthesis, solid state structure and polymerisation of a fully planar cyclopentadithiophene&quot;, Chem. Commun., (2003), pp. 2548-2549.;  Ricard C. Larock, Palladium-Catalyzed Annulation of Alkynes, Topics in Organometallic Chemistry, vol. 14, 2005, pp. 147-182.;  S. Yoshida et al., &quot;Novel Electron Acceptors Bearing a Heterquinonoid System. 4.1 Syntheses, Properties, and Charge-Transfer Complexes of 2,7-Bis(dicyanomethylene)-2,7-dihydrobenzo[2,1-b:3,4-b&apos;]dithiophene, 2,7-Bis(dicyanomethylene)-2,7-dihydrobenzo[1,2-b:4,3-b&apos;]dithiophene, and 2,6-Bis(dicyanomethylene)-2,6-dihydrobenzo[1,2-b:4,5-b&apos;]dithiophene&quot;, J. Org. Chem., vol. 59, (1994), pp. 3077-3081.;  T.K. Doughtery et al. &quot;Anomaly in Palladium-Catalyzed Phenylethynylation of 2,2&apos;-Dihalobiphenyls: Formation of Alkylidenefluorenes&quot;, J. Org. Chem., 48, 1983, p5273-p5280.;  Tsuchimoto, T. et al., Easy access to aryl- and heteroaryl-annulated [a] carbazoles by the indium-catalyzed reaction of 2-arylindoles with propargyl ethers, Angewandte Chemie, International Edition, (2005), vol. 44, No. 9, pp. 1336-1340.;  W. Archer et al., &quot;Electro philic Aromatic Substitution. Part 34.1 Partial Rate Factors for Detritiation of Dithieno[1,2-b :4,3-b&apos;]benzene, Dithieno[1,2-b :3,4-b&apos;]benzene, and Dithieno[2,1-b :3,4-b&apos;]benzene&quot;, J. Chem. Soc. Perkin Trans. II, (1983), pp. 813-819.;  Wiersema, Allert K. et al., Thiophene analog of fluorene. IV. Unusual behavior of a cyclopentadithiophenone in the reaction with dienophiles, Acta Chemica Scandinavica, 1974-1974, (1970), 24(7), pp. 2653-2655.;  X. Li et al., &quot;A Highly -Stacked Organic Semiconductor for Thin Film Transistors Based on Fused Thiophenes&quot;, J. Am. Chem. Soc., vol. 120, (1998), pp. 2206-2207.