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Class 548/120 - The five-membered hetero ring contains ring selenium and is one of the cyclos in a polycyclo ring system


Subclass of Class 548 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein the five-membered hetero ring contains
No. of patents: 42
Last issue date: 09/21/2010


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NumberTitleIssue Date
7799927Indolestyryl compound and high density recording media utilizing the same
An indolestyryl compound. The indolestyryl compound has formula (I): wherein Z1 comprises benzene, naphthalene, or heterocyclic ring containing O, S, or N, R2 comprises H, halo...
09/21/2010
7709653Asymmetric cyanine compounds, their preparation methods and their uses
Asymmetric cyanine compounds represented by general formula I are provided, wherein X, n, R1, R2, R3, R4 and Y− are as defined in the specification. They have a maximum absorption peak at about 640 nm which ma...
05/04/2010
7338720Organic electroluminescent element
An organic electroluminescent (EL) device which uses, as a luminescence-assisting agent, a novel coumarin derivative with a specific structure. The coumarin derivative effectively accelerates in such an organic EL device the transfer of excited energy in a host comp...
03/04/2008
7252892Organic electroluminescence device
An organic electroluminescent (EL) device which contains a novel coumarin derivative composed of a coumarin ring, a naphthalene ring with one or more hydrocarbon groups, and a five-membered hetero ring condensed with the naphthalene ring so as to give an electronic ...
08/07/2007
7166715Nitro-substituted non-fluorescent asymmetric cyanine dye compounds
The invention provides an asymmetric cyanine dye compound having the structure including substituted forms thereof, wherein, at least one of R1 and R2 is linking group, X is O, S, or Se, and...
01/23/2007
6815459Seleno compounds containing nitrone moiety, their preparation and their therapeutic uses
The present invention provides novel seleno compounds containing nitrone moiety, a process for preparing the same, the use of the novel compounds as therapeutics for treating and/or preventing various medical dysfunctions and diseases arising from reactive oxygen sp...
11/09/2004
6800380Organometallic luminescent materials and organic electroluminescent device containing same
An organometallic luminescent material comprising the compound of formula (I) of the present invention can emit pure blue light and have high thermal stability: wherein, M1 is a monovalent or tetravalen...
10/05/2004
6750024Nitro-substituted non-fluorescent asymmetric cyanine dye compounds
The invention provides an asymmetric cyanine dye compound having the structure including substituted forms thereof, wherein, at least one of R1 and R2 is linking group, X is O, S, or Se, and n range...
06/15/2004
6706879Fluorescent dye
The invention relates to fluorescent dyes. More particularly, the invention relates to fluorescent cyanine dyes, and especially to water soluble fluorescent cyanine dyes that contain additional sites for attachment to biomolecules. The invention provides a group of ...
03/16/2004
6541618Nitro-substituted non-fluorescent asymmetric cyanine dye compounds
The invention provides an asymmetric cyanine dye compound having the structure ##STR1## including substituted forms thereof, wherein, at least one of R1 and R2 is linking group, X is O, S, or Se, and n ranges from 0 to 2. The in...
04/01/2003
6475730Detecting nucleic acids
The present invention relates to a method of detecting nucleic acids and particularly to a method of analyzing for the presence and/or amount of a nucleic acid....
11/05/2002
6350431Compounds
This invention provides a physiologically tolerable light imaging contrast agent compound having a molecular weight in the range 500 to 5000000 and containing at least two chromophores having delocalized electron systems as well as at least one polyalkyle...
02/26/2002
6232470Substituted pyrazol-3-ylbenzazoles, their use as herbicides or desiccants/defoliants, and their preparation
Substituted Pyrazol-3-ylbenzazoles I ##STR1## salts thereof, and their use as herbicides or for the desiccation/defoliation of plants....
05/15/2001
6197922Polyselenophenes, the preparation thereof and the use thereof
Novel polyselenophenes comprising one or more structural units of the formulae (I) or (II) or (I) and (II) ##STR1## processes for preparing them, monomers for their preparation, their use in various technical sectors, and an electrically conducting materi...
03/06/2001
6080868Nitro-substituted non-fluorescent asymmetric cyanine dye compounds
The invention provides an asymmetric cyanine dye compound having the structure ##STR1## including substituted forms thereof, wherein, at least one of R1 and R2 is linking group, X is O, S, or Se, and n ranges from 0 to 2. The ...
06/27/2000
6060495Pesticidal sulfur compounds
Pyrazole, pyrrole and imidazole derivatives having formula (I) or (II): ##STR1## wherein .dbd.X is .dbd.NR3, .dbd.O or an electron pair and Q comprises certain pyrazole, pyrrole and imidazole structures which, together with the remaining s...
05/09/2000
5932740Thioheterocyclic near-infrared dyes
Disclosed is a novel near-infrared absorbing dye of formula: ##STR1## wherein X1, X2 independently represents --CR8 R9 --, --S--, --Se--, --NR10 --, --CH.dbd.CH-- or --O--; n is an integer of 2 or 3; ...
08/03/1999
5925472Electroluminescent devices
A metal chelate compound of the formula Ln --M+n (I) wherein M represents a metal; n is an integer, or number of from 1 to 3; and L is a ligand of ##STR1## wherein Ar is aryl; X is selected fro...
07/20/1999
5424443Substituted benzothiazole derivatives, their preparation and use as herbicides
The invention relates to new substituted benzothiazole derivatives of general formula (I), in which X, Y and Z have the meanings given in the description, processes for their preparation and their use as herbicides. ##STR1##...
06/13/1995
5334333Electroactive compounds, compositions and devices and methods of making the same
The present invention relates to electroactive compounds capable of undergoing a change in light absorption and refraction due to an applied electric field and a permanent change in refraction due to exposure to predetermined bands of optical radiation. T...
08/02/1994
4966828Carbonylmethylene-heterocyclic compounds containing trihalogenomethyl groups, process for their preparation, and light-sensitive mixture containing the compounds
Disclosed is a compound of the general formula ##STR1## wherein L=H or CO--(R1)n (CX3)m, M=alkylene, alkenylene, Q=S, Se, O, dialkylmethylene, alken-1,2-ylene, 1,2-phenylene or N-R, with M+Q together formin...
10/30/1990
4774252Benzisoselenazolonyl derivatives and processes for the treatment of rheumatic disease
The present invention relates to new benzisoselenazolonyl derivatives of the general formula (I) ##STR1## and processes for the treatment of rheumatic diseases....
09/27/1988
4680375Polymeric cyanine dye
Tricarbocyanine polymeric dyes have formulae I and II: ##STR1## where Y can be ##STR2## --S--, --Se-- or --O--, A can be ##STR3## in which R19 can be alkyl or --Cl, and p can be 0 or 1, R6 and R7 inde...
07/14/1987
4677053Silver halide photographic materials
A silver halide photographic material comprising a support having thereon at least one silver halide photographic emulsion containing at least one infrared sensitizing dye represented by following general formula (I) ##STR1## and at least one compoun...
06/30/1987
4619881Photoconductive composition and electro-photographic light-sensitive material containing a trisazo compound
A photoconductive composition is disclosed, containing at least one trisazo compound represented by the following general formula (1): ##STR1## wherein Z represents ##STR2## R6 represents a hydrogen atom, a lower alkyl group, an aryl ...
10/28/1986
4599410Oxachalcogenazole dyes and processes for their preparation
Methine dyes are disclosed which contain a 2-halo or pseudohalo substituted 1,2,5-oxatellurazole ring fused with an aromatic nucleus, the aromatic nucleus being substituted with a methine linkage terminating in an auxochrome providing a conjugated resonan...
07/08/1986
4596767Silver halide photographic light-sensitive material
A silver halide photographic light-sensitive material spectrally sensitized in an infrared region is described. The silver halide photographic light-sensitive material has at least one silver halide photographic emulsion layer containing at least one infr...
06/24/1986
4552828Direct positive silver halide photographic emulsion
A direct positive silver halide photographic emulsion which is able to provide a high maximum density and a low minimum density and having a high developing progress. The emulsion contains at least one of the sensitizing dyes represented by following gene...
11/12/1985
4504668Process for the preparation of N-sulfoalkyl quaternary salts of nitrogen heterocyclics
Tertiary amines may be quaternized by heating them with a sulfoalkylating agent of this invention to a temperature of from 100° to 250° C. The sulfoalkylating agents which are believed to be hydroxy alkane sulfonic acid sulfoalkyl esters are free from s...
03/12/1985
4501811Process for making lithographic printing plates
Disclosed is a process for making a lithographic printing plate by utilizing the silver complex diffusion transfer process and using a neon-helium laser or an LED which comprises imagewise exposing to the radiation a photosensitive element including an em...
02/26/1985
4474746Diagnostic radiopharmaceuticals for localization in target tissues exhibiting a regional pH shift relative to surrounding tissues
A radiopharmaceutical chemical compound comprising a radioactive isotope, other than an isotope of iodine, in chemical combination with at least one amine group. The compound has a lipophilicity sufficiently high at a pH of 7.6 to permit passage of the co...
10/02/1984
4469785Light-sensitive silver halide color photographic material
There is disclosed a light-sensitive silver halide color photographic material having a silver halide emulsion layer containing at least one layer of a negative working silver halide on a support, comprising the negative working silver halide comprises at...
09/04/1984
4469768Electrophotographic light-sensitive material comprising a charge-generating material and a charge-transporting material
An electrophotographic light-sensitive material with an electrophotographic light-sensitive layer containing a charge-generating material and a charge-transporting material is described. The material is characterized in that the charge-generating material is a...
09/04/1984
4418069Benzisoselenazolones and process for the treatment of rheumatic and arthritic diseases using them
The present invention is related to new benzisoselenazolones having the general formula I ##STR1## new products having the general formula II ##STR2## used as intermediary products in the production of the compounds of formula I and a metho...
11/29/1983
4256819Organic electrophotosensitive materials for migration imaging processes
Electrophotosensitive materials having the structure ##STR1## wherein: Z1 and Z2 represent a basic type heterocyclic nucleus; Y represents N or a methine carbon C--G1 ; G1 and G2 may be the same or differe...
03/17/1981
4193801Process for producing photographic silver halide material
A method of incorporating water insoluble additives (e.g. sensitizing dyes) in colloid layers of photographic silver halide material is provided. The additives are dissolved in a fused water soluble organic compound (e.g. sorbitol or succinimide) and the ...
03/18/1980
4028353Novel chemical compounds
The present invention relates to photography and, more particularly, to a novel spectrally (optically) sensitized radiation recording photographic element which comprises a cyanine dye of the formula: ##STR1## wherein L represents a methine group; m ...
06/07/1977
4026884Methyne dyes and photographic elements
Novel methyne dyes comprising two auxochromic groups of the type used in a cyanine or merocyanine dye linked by a carbon atom chain wherein each of the carbon atoms have an unsaturated linkage to at least one adjacent carbon atom in the chain and at least...
05/31/1977
4009176Conversion of 2-aminonaphtho[1,2 d] selenazole to 2-methylnaphtho[1,2 d] selenazole
This invention relates to the new compound 2-aminonaphtho [1,2-d] selenazole of the formula ##STR1## Compound (I) is prepared by halogenating 1,2,3,4-tetrahydro-1-oxonaphthalene-3-sulphonate, reacting the halogenated compound with selenourea and...
02/22/1977
3996215Styryl and butadienyl sulfa dye and process of producing the dye
A styryl and butadienyl dye suitable as a filter dye or antihalation dye for photography having the formula ##STR1## wherein R represents a lower alkyl group, an unsubstituted or substituted sulfo lower alkyl group, an unsubstituted or substituted su...
12/07/1976
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