Phenanthrene compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – Cyclohexadiene having atoms double bonded directly at the 1-...

Reexamination Certificate

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C428S917000, C428S704000, C428S446000, C428S448000, C428S690000, C552S299000, C552S295000, C552S292000, C552S544000

Reexamination Certificate

active

06967255

ABSTRACT:
A phenanthrene compound represented by the formula (I):in which, R1, R2, R3, R4, R5, R6, R7, and R8are identical or different and may each be hydrogen, halogen, C1-6alkyl, C1-6alkoxy, or a conjugated group. The phenanthrene compound has a polycyclic structure and semiconductor properties including electron transfer, electroluminescence, and photoluminescence.

REFERENCES:
patent: 5763636 (1998-06-01), Kreuder et al.
patent: 6268072 (2001-07-01), Zheng et al.
patent: 2003-55276 (2003-02-01), None
Ayats et al, AN 2003:784844 HCAPLUS, DN 139:395638; Abstract of Journal of Organic Chemistry (2003), 68(22), 8715-8718.
Van Ornum et al, AN 1997:764120 HCAPLUS, DN 128:114621; Abstract of Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1997), (22), 3471-3478.
Camps et al, AN 1995:512496 HCAPLUS, DN 123:55418; Abstract of Synthetic Communications (1995), 25(9), 1287-93.
Kubiak et al, AN 1985:541178 HCAPLUS, DN 103: 141178; Abstract of Tetrahedron Letters (1985), 26 (18), 2163-6.

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