Aminostyrylanthracene compound, synthetic intermediate...

Details Aminostyrylanthracene compound, synthetic intermediate... Aminostyrylanthracene compound, synthetic intermediate...

2006-04-04

2006-04-04

Richter, Johann (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Phosphorus esters

C558S418000, C558S419000

Reexamination Certificate

active

07022868

ABSTRACT:
This invention is an aminostyrylanthracene compound represented by, for example, the following general formula [I]. This compound is produced by condensation from a corresponding aminobenzaldehyde and a phosphonic ester or phosphonium salt.[where, in the general formula [I] above, R2represents an unsubstituted aryl group, R1represents an aryl group which may have a variety of substituents, and R3to R5each represent a hydrogen atom, a cyano group, or a hydrocarbon group.]

REFERENCES:
patent: 4091208 (1978-05-01), Okazaki et al.
patent: 5500417 (1996-03-01), Johnson
patent: 1 072 669 (2001-01-01), None
patent: 2001-288377 (2001-10-01), None
Database HCAPlus ACS; Dec. 14, 1994, XP002301125, retrieved from STN Database accession No. 123:21800/DN, abstract, RN164061-69-2, Hua Wang et al., vol. 12, No. 3, 1994, pp. 278-282.
Database HCAPlus ACS; Apr. 1, 1998, XP002301126, retrieved from STN Database accession No. 128:204680/DN, abstract, RN204119-42-6, Hua Wang et al., vol. 8, No. 4, 1997, pp. 1-5.

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