Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Reexamination Certificate
2004-03-01
2009-10-13
Caldarola, Glenn A (Department: 1797)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
C430S270110, C430S298000, C430S321000, C430S644000, C257S040000, C428S001200
Reexamination Certificate
active
07601478
ABSTRACT:
There is provided a method for producing highly purified fused aromatic ring compounds with high yield by a simpler method. A method for producing a fused aromatic ring compound comprising irradiating the bicyclo compound containing at least one bicyclo ring represented by formula (1) in a molecule with light to detach a leaving group X from a residual part to form an aromatic ring: wherein R1 and R3 each denotes a group to form an aromatic ring or a heteroaromatic ring which may be substituted, together with a group to which each thereof is bonded; R2 and R4 each denotes a hydrogen atom, an alkyl group, an alkoxy group, an ester group or a phenyl group; and X is a leaving group, which denotes a carbonyl group or —N═.
REFERENCES:
patent: 6500604 (2002-12-01), Dimitrakopoulos et al.
patent: 2003/0136964 (2003-07-01), Afzali-Ardakani et al.
patent: 2003/0144562 (2003-07-01), Afzali-Ardakani et al.
patent: 2004/0110093 (2004-06-01), Afzali-Ardakani et al.
patent: 2004/0119073 (2004-06-01), Ardakani et al.
patent: 2004-221318 (2004-08-01), None
Rubin, M.B. (1985). “Recent Photochemistry of alpha-Diketones” in Photochemistry and Organic Synthesis, 129, Springer-Berlin/Heidelberg, pp. 1-56.
Marcus W. Wright et al., “Transition Metal Mediated Exo Selective Diels-Alder Reactions: Preparation of 2-Cobalt-Substituted 1,3-Dienes Containing C2Symmetric 2,3-Dibenzobicyclo[2.2.2]octanedione Dioxime Equatorial Ligands and Their Use in Thermal and Lewis Acid Catalyzed 4+2 Cycloadditions”,J. Org. Chem., 1996, vol. 61, pp. 133-141.
Glen A. Russell et al., “Decarbonylation and Decarboxylation by Lithium in Hexamethylphosphoramide”,J. Org. Chem., vol. 43, No. 11, 1978, pp. 2242-2244.
Hans-Dieter Scharf et al., “Diensynthesen mit Dichlorvinylencarbonat”,Chem. Ber., 1972, vol. 105, pp. 564-574.
J. Strating et al., “Evidence for the Expulsion of bis-CO From Bridged α-Diketones”,Tetrahedron Letters, 1969, No. 3, pp. 125-128.
Wyman R. Vaughan et al., “Studies in the Dibenzobicyclo[2.2.2]octadiene System”,J. Org. Chem., 1957, vol. 22, pp. 528-532.
Henrik Olsen et al., “Concerted Thermal Cycloreversion of Unsaturated AzoN-Oxides”,J. Am. Chem. Soc., 99(5), 1977, pp. 1524-1536.
H. Hart. et al, “Photochemical and Thermal Inertness of a Bicyclo[2.2.2]octadienone Diimine,” 4 Chem. Commun. 126-27 (1974).
Peter T. Herwig et al., “A Soluble Pentacene Precursor: Synthesis, Solid-State Conversion into Pentacene and Application in a Field-Effect Transistor,” 11(6) Adv. Mater. 480-83 (1999).
Ali Afzali et al., “High-Performance, Solution-Processed Organic Thin Film Transistors from a Novel Pentacene Precursor,” 124 J. Am. Chem. Soc. 8812-13 (2002).
Ono Noboru
Uno Hidemitsu
Caldarola Glenn A
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
McCaig Brian
LandOfFree
Bicyclo compound, method for producing fused aromatic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bicyclo compound, method for producing fused aromatic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bicyclo compound, method for producing fused aromatic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4138497