US 7,514,158 B2
Coumarin compound
Makoto Satsuki, Okayama (Japan); Makoto Fujiwara, Okayama (Japan); Natsuko Ishida, Okayama (Japan); Sadaharu Suga, Okayama (Japan); Hisayoshi Fujikawa, Aichi (Japan); Hisato Takeuchi, Aichi (Japan); and Yasunori Taga, Aichi (Japan)
Assigned to Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo, Okayama (Japan)
Appl. No. 10/498,477
PCT Filed Dec. 10, 2002, PCT No. PCT/JP02/12918
§ 371(c)(1), (2), (4) Date Jun. 14, 2004,
PCT Pub. No. WO03/050106, PCT Pub. Date Jun. 19, 2003.
Claims priority of application No. 2001-379529 (JP), filed on Dec. 13, 2001; application No. 2002-117617 (JP), filed on Apr. 19, 2002; application No. 2002-119823 (JP), filed on Apr. 22, 2002; application No. 2002-343200 (JP), filed on Nov. 27, 2002; and application No. 2002-343225 (JP), filed on Nov. 27, 2002.
Prior Publication US 2005/0275341 A1, Dec. 15, 2005
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 29/08 (2006.01); H01L 35/24 (2006.01); H01L 51/50 (2006.01); C07D 311/02 (2006.01)
U.S. Cl. 428—690  [428/917; 313/504; 313/506; 257/40; 549/284] 7 Claims
OG exemplary drawing
 
1. A coumarin compound represented by Formula 1:
Ø(Z)m  Formula 1
wherein in Formula 1, Ø is an aromatic ring or heterocycle selected from the group consisting of thiophene, triazine, furan, benzene, pyrazine, pyridine, naphthalene, anthracene, thieno[3,2-b]thiophene, phenanthrene, fluorene, furo[3,2-b]furan, terphenyl, biphenyl, bithiophene, bifuran, acridine, isoquinoline, indole, carbazole, carboline, quinoline, dibenzofuran, cinnoline, thionaphthene, 1,10-phenanthroline, phenothiazine, purine, and benzofuran rings, and combinations thereof, which may optionally have a substituent; each Z is the same or different coumarin group represented by Formula 1, with the proviso that each coumarin group may optionally have a substituent; and m is an integer of two or more; with the proviso that (i), when o contains any of triazine, furan, benzene, pyrazine, naphthalene, indole, and phenanthrene, each of said furan, naphthalene, pyrazine, indole, and phenanthrene is bonded with the same or different aromatic ring or heterocycle as identified above, said triazine is bonded with Z with m being three said bonding being directly or via any one of the above-identified thiophene, furan, benzene, pyrazine, pyridine, naphthalene, and fluorene; (ii) when Ø contains benzene, said benzene is bonded with Z with m being three or more; and (iii) when o contains pyridine, said pyridine is bonded with another pyridine;

OG Complex Work Unit Drawing
wherein in Formula 2, R1 to R5 independently represent hydrogen or a substituent selected from the group consisting of aliphatic hydrocarbon groups, alicyclic hydrocarbon groups, aromatic hydrocarbon groups, heterocyclic groups, amino groups, halogen groups, and combinations thereof; R3 and R4 may form a cyclic structure together with the carbon atoms linked to R2, R3, R4 and/or R5, and in this case, R2, R3, R4 and/or R5 do not independently exist.