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| Number | Title | Issue Date |
| 8158832 | Photochemical methods and photoactive compounds for modifying surfaces Compounds and methods for controlling the surface properties are described. Compounds of the invention can form radicals upon exposure to irradiation, which can then react with nearby molecules to alter the surface properties of various substrates. The invention can... | 04/17/2012 |
| 8022255 | Process for preparing ketones from alpha-oxo carboxylates and aryl bromides A process for preparing ketones of the general formula (III) where R is an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted alky... | 09/20/2011 |
| 7439407 | Fluorinated pentacene derivative and method of producing same Fluorinated pentacene derivatives, for example, the novel compounds tetradecafluoropentacene, 5,6,7,12,13,14-hexafluoropentacene, 5,7,12,14-tetrafluoropentacene, and 6,13-difluoropentacene, and intermediates therefor are provided. And a method of producing fluorinat... | 10/21/2008 |
| 7279604 | Boron carbide as an effective Friedel-Crafts type catalyst The compound boron carbide, B4C, is an effective catalyst for the alkylation and acylation of aromatics to produce polybenzyls, ketones, esters and alkyl benzenes. The catalyst boron carbide is also effective in conducting intramolecular Friedel-Crafts ty... | 10/09/2007 |
| 7253323 | Method for the production of benzophenones A process for preparing benzophenones of the formula I, where X may be chlorine, hydroxyl, methoxy or C1-C6-alkylcarbonyloxy, and Y may be chlorine or bromine, by reacting an acid chloride o... | 08/07/2007 |
| 7119235 | Process utilizing zeolites as catalysts/catalyst precursors According to one aspect of the invention, there is provided the use of an organic ionic liquid in a zeolite-catalysed process, for example an acylation, alkylation, isomerisation or hydrocracking process in which zeolites act as catalysts or catalyst precursors, esp... | 10/10/2006 |
| 7119360 | Light-emitting polymers and electronic devices using such polymers Novel pentaphenylenes having the following general formula are described; These polymers generally exhibit blue electroluminescence and are useful in electronic devices. A novel diketone compound having a low LUM... | 10/10/2006 |
| 6943257 | Process for preparation of aromatic halides from aromatic amines The present invention provides a process for preparing an aromatic bromide or aromatic iodide from an aromatic amine derivative using nitrite anion and halodimethylsulfonium halide generated in situ from hydrobromic acid/DMSO or hydriodic acid/DMSO. The process for ... | 09/13/2005 |
| 6919485 | Benzophenones, the production thereof and their use for controlling plant pathogenic fungi The invention relates to benzophenones of formula (I), in which the substituents have the following meanings: X represents halogen; R1 represents hydrogen, halogen, C1-C6 alkyl, halo-C1-C2 alkyl, C1-C... | 07/19/2005 |
| 6852894 | Tribenzoyl compounds An oxygen scavenging composition or system is provided comprising an oxygen scavenging material, a photoinitiator, and at least one catalyst effective in catalyzing an oxygen scavenging reaction, wherein the photoinitiator comprises a benzophenone derivative contain... | 02/08/2005 |
| 6828463 | Process for the preparation of carbonyl compounds with a carbonyl group attached to the aromatic ring The present invention relates to a process for the preparation of aromatic carbonyl compound with carbonyl group attached to its aromatic ring, particularly relates to a process for the preparation of aromatic carbonyl compound with carbonyl group attached to its ar... | 12/07/2004 |
| 6781015 | Aminobenzophenones and photopolymerizable compositions including the same Novel benzophenone derivatives and methods of making and using the same are disclosed. The novel compounds can display highly active photoinitiation and photopolymerization properties. ... | 08/24/2004 |
| 6777578 | Hydroxyphenstatin and the prodrugs thereof The benzophenone derivative of combretastatin A-1, designated “hydroxyphenstatin”, was synthesized by compiling a protected bromobenzene and a benzaldehyde to form a benzhydrol which was subsequently oxidized to the ketone. Hydroxyphenstatin was converted to a s... | 08/17/2004 |
| 6677473 | Plasminogen activator inhibitor antagonists Compounds and pharmaceutical compositions useful as plasminogen activator inhibitor (PAI) antagonists are provided. In particular, methods of antagonizing PAI with substituted and unsubstituted aryl and heteroaryl ethers and thioethers, benzils, benzyl et... | 01/13/2004 |
| 6669994 | Water-soluble coating agents bearing initiator groups A method of forming a polymer layer on a support surface by the use of a coating agent and polymerizable compounds. The coating agent provides photoreactive groups adapted to attach the agent to the surface, as well as photoreactive groups adapted to rema... | 12/30/2003 |
| 6610890 | Aldose reductase inhibitors and pharmaceutical compositions Medicaments for treating diabetic complications contain a compound of formula (A), wherein at least one Y or one Y' is OH, and the remainder are selected from H, Hal, OH, OMe and NO2 ; X is O, S, keto or a direct link ##STR1##... | 08/26/2003 |
| 6548722 | Process for the preparation of substituted aromatic compound employing friedel-crafts reaction using a reusable basic anionic clay catalyst A process for Friedel-Crafts type liquid-phase alkylation or acylation of an aromatic compound using a hydrotalcite-type basic anionic clay catalyst represented by a formula: [(M2-)1-x (M3+)x (OH)2 ]x... | 04/15/2003 |
| 6537670 | Bis(alkyleneoxybenzophenone) ultraviolet light absorbers The present invention relates to novel bisbenzophenones and the use thereof as an ultraviolet light absorber. The presently claimed compounds are particularly useful, either alone or in combination with other additives, including other ultraviolet light a... | 03/25/2003 |
| 6495622 | Dimeric light stabilizers for polyolefines and polyolefine copolymers Compositions comprising A) a polyolefin or polyolefin copolymer, and B) a compound of the formula I ##STR1## wherein R1 is O or O--X--O; R2, R3, R4 and R5 independently are hydrogen, halogen, C1... | 12/17/2002 |
| 6479706 | Aminobenzophenones and photopolymerizable compositions including the same Novel benzophenone derivatives and methods of making and using the same are disclosed. The novel compounds can display highly active photoinitiation and photopolymerization properties.... | 11/12/2002 |
| 6479659 | Process of making 3-phenyl-1-methylenedioxyphenyl-indane-2-carboxylic acid derivatives Invented is an improved process for preparing aromatic ring-fused cyclopentane derivatives. Preferred compounds prepared by this invention are indane carboxylates and cyclopentano[b]pyridine derivatives. The most preferred compounds prepared by this inven... | 11/12/2002 |
| 6441244 | Benzophenones and the use thereof as photoinitiators The invention relates to new compounds of the formula (I) ##STR1## in which R is phenyl, C1-4 alkyl-, C1-4 alkoxy- or halogen-substituted phenyl, naphthyl or an aromatic ring containing heteroatoms; X is O or S; R1 and R2 | 08/27/2002 |
| 6362376 | Process for the preparation of 2-hydroxyalkyl halophenones 2-Benzyloxyalkyl halophenones of the formula (3): ##STR1## wherein X1 and X2 are each independently H, Cl or F, provided that at least one of X1 and X2 is Cl or F; one of R3 and R4 is H and... | 03/26/2002 |
| 6342196 | Synthesis of hydrogen peroxide A method for synthesizing hydrogen peroxide comprises the steps of: synthesizing an analog of anthraquinone that is miscible or soluble in carbon dioxide; reacting the analog of anthraquinone with hydrogen in carbon dioxide to produce a corresponding anal... | 01/29/2002 |
| 6339159 | Optically active -aminonitrile and process for producing -amino acid An aldehyde compound is reacted with an amino compound and hydrogen cyanate in the presence of a chiral zirconium catalyst obtained by mixing a zirconium alkoxide with an optically active binaphthol compound.... | 01/15/2002 |
| 6194616 | Acylation method for an aromatic compound The present invention concerns a process for acylation of an aromatic compound. The acylation process of the invention consists of reacting the aromatic compound with an acylation agent in the presence of a zeolitic catalyst, and is characterized in that ... | 02/27/2001 |
| 6121495 | Ethynyl substituted aromatic compounds, synthesis, polymers and uses thereof Compounds of ethynyl aromatic compounds form polymers which have high thermal stability. The monomers are useful for coating a wide variety of substances such as dielectric coatings where high thermal resistance is desirable including electronic component... | 09/19/2000 |
| 6121330 | 5-Hydroxyalkyl substituted phenyls and their use in medicaments for the treatment of arteriosclerosis and hyperlipoproteinaemia The novel 5-hydroxy-alkyl-substituted phenyls are prepared by either reacting the corresponding benzaldehydes with the Grignard compounds and subsequently reducing the other functional groups or by reducing the corresponding benzoic esters by customary me... | 09/19/2000 |
| 6077698 | Photoactivatable cross-linking agents containing charged groups for water solubility A chemical linking agent is formed of a di- or higher functional photoactivatable compound having at least one group that is charged to improve water solubility, and two or more photoreactive groups (preferably comprising an aryl ketone such as benzopheno... | 06/20/2000 |
| 6011178 | Process for the preparation of 2-amino-4,5,3',4'-tetramethoxybenzophenone 2-Amino-4,5,3',4'-tetramethoxybenzophenone of the formula: ##STR1## is prepared by mononitration of 3,3',4,4'-tetramethyoxybenzophenone using nitric acid in the presence of acetic acid, and subsequent reduction of the nitro group. The compound is an ... | 01/04/2000 |
| 6008302 | Polyolefin bound ultraviolet light absorbers Oligomeric materials contain ultraviolet light absorbing compounds that are covalently bound to the oligomer backbone through an ester or amide linkage. These ultraviolet light absorbing oligomers may be combined with polymers such as polyolefins to provi... | 12/28/1999 |
| 6008268 | Photoreactor composition, method of generating a reactive species, and applications therefor A method of generating reactive species which includes exposing a photoreactor composition to radiation, in which the photoreactor composition comprises a wavelength-specific sensitizer associated with one or more reactive species-generating photoinitiato... | 12/28/1999 |
| 6005113 | Long wavelength dyes for infrared tracing The invention relates to fluorescent dyes that are substituted or unsubstituted derivatives of 1-(isoindolyl)methylene-isoindole that are bound through both isoindole nitrogens to a boron difluoride moiety, forming a fluorescent dibenzopyrrometheneboron d... | 12/21/1999 |
| 5986136 | Photolabeling reagent Disclosed is a compound represent by the following structural formula: ##STR1## X is --H or an amine protecting group; --OY is --OH, an activating group for a carboxylic acid or a protecting group for a carboxylic acid; Z is --H or a phenolic protect... | 11/16/1999 |
| 5905172 | Method of making dibenzoylresorcinol compositions capable of absorbing ultraviolet light Novel dibenzoylresorcinol compositions capable of absorbing ultraviolet light having the formula ##STR1## where Ar1 and Ar2 are independently substituted or unsubstituted monocyclic or polycyclic aryl groups, R is hydrogen, an a... | 05/18/1999 |
| 5892131 | Process for the preparation of pesticidal fluoroolefin compounds A process and intermediate compounds for the preparation of fluoroolefin compounds which are useful as pesticidal agents.... | 04/06/1999 |
| 5880162 | Pesticidal fluoroolefins A pesticidal compound of formula I: ##STR1## in which formula: either R1 is hydrogen and R2 represents a cyclopropyl group or R1 and R2 each represent an alkyl group, which alkyl groups may be the same or d... | 03/09/1999 |
| 5877353 | Process for the preparation of benzophenone derivatives The present invention relates to a process for the preparation of benzophenone derivatives and comprises a selective crystallization of alkali salts of compounds of formula (I) ##STR1## wherein R1 is lower-alkyl and R2 is hydrog... | 03/02/1999 |
| 5861540 | Substituted 1,1,1-triaryl-2,2,2-trifuoroethanes and processes for their synthesis Synthetic procedures to tetraalkyls, tetraacids and dianhydrides substituted 1,1,1-triaryl-2,2,2-trifluoroethanes which comprises: (1) 1,1-bis(dialkylaryl)-1-aryl-2,2,2 -trifluoroethane, (2) 1,1-bis(dicarboxyaryl)-1-aryl-2,2,2-trifluoroethane or (3) cycli... | 01/19/1999 |
| 5858653 | Reagent and method for attaching target molecules to a surface Method and reagent composition for covalent attachment of target molecules, such as nucleic acids, onto the surface of a substrate. The reagent composition includes groups capable of attracting the target molecule as well as groups capable of covalently b... | 01/12/1999 |
