Indole compound, optical filter and optical recording material

Details Indole compound, optical filter and optical recording material Indole compound, optical filter and optical recording material

2011-04-12

2011-04-12

Ruthkosky, Mark (Department: 1785)

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

C430S270150, CG9BS007148

Reexamination Certificate

active

07923091

ABSTRACT:
An indole compound represented by general formula (I):wherein R1and R2each represent a hydrogen atom, a hydrocarbon group having 1 to 30 carbon atoms or a substituent represented by general formula (II); R3and R4each represent an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or an aryl group having 6 to 30 carbon atoms; R5, R6, R7, and R8each represent a hydrogen atom, a hydrocarbon group having 1 to 30 carbon atoms, a halogen atom, a hydroxyl group, a nitro group, a cyano group, NHR or NR′R″; R, R′, and R″ each represent an alkyl group having 1 to 10 carbon atoms, or R′ and R″ are taken together to form a ring; R5and R6, R6and R7, or R7and R8may be taken together to form a ring; Anq−represents a q-valent anion; q represents 1 or 2; and p represents a coefficient necessary to maintain charge neutrality.

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STN search history for compounds of general formula (I) from Aug. 14, 2010.
Timokhina et al., “Mesomerically stabilized thioaldehydes. 3-Thioformylindole and its alkyl (phenyl) derivatives,” Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 493-496 (1996).
Blunt et al., “Syntheses of Haptens Related to the Benzenoid and Indole Portions of Sporidesmin A;13C N.M.R. Spectra of Indole Derivatives,” Aust. J. Chem., vol. 32, No. 5, pp. 1045-1054 (1979).
Genikina, “Kinetics of hydrolysis of 3-indolylmethylindenedimethylimmonium fluoroborate in a phosphate buffer,” Chem. Abs., vol. 104, p. 480, 5282u (Compound I) (1986).
Babievskii, “Reaction of nitro compounds with immonium salts 1. Nitrovinylation of indoles,” Izvestiya Akademii Nauk SSSR, Seiya Khimicheskaya, No. 10, pp. 2310-2313 (1977).
Kobayashi, “Azafulvenes 2. Formation of Iminium Salt from Pyrrole- and Indolecarbaldehyde and Its Reaction with Bases,” Bulletin of Chem. Soc. of Japan, vol. 48, No. 11, pp. 3255-3258 (1975).
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Blunt, J.W.; “Syntheses of Haptens Related to the Benzenoid and Indole Portions of Sporidesmin A; Carbon-13 NMR Spectra of Indole Derivates”—Australian Journal of Chemistry, vol. 32, No. 5, pp. 1045-1054, Dec. 31, 1979.

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