| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 544408000 | Chalcogen bonded directly to diazine ring carbon | 9 |
| 20090012297 | Ionic liquids as solvents - A method in one embodiment includes contacting a strongly hydrogen bonded organic material with an ionic liquid having a fluoride anion for solubilizing the strongly hydrogen bonded organic material; and maintaining the ionic liquid at a temperature of about 90° C. or less during the contacting. A method in another embodiment includes contacting a strongly hydrogen bonded organic material with an ionic liquid having an acetate or formate anion for solubilizing the strongly hydrogen bonded organic material; and maintaining the ionic liquid at a temperature of less than about 90° C. during the contacting. A method for purifying a strongly hydrogen bonded organic material according to one another embodiment includes dissolving a strongly hydrogen bonded organic material, selected from a group consisting of 1,3,5-triamino-2,4,6-trinitrobenzene and 2,6-diamino-3,5-dinitropyrazine-1-oxide, in a solution comprising an ionic liquid, the ionic liquid having an anion selected from a group consisting of a fluoride anion, an acetate anion, and a formate anion; maintaining the solution at a temperature of about 70° C. or less during the contacting; and recrystallizing the strongly hydrogen bonded organic material. | 01-08-2009 |
| 20090299067 | New synthesis of 2,6-diamino-3,5-dinitropyrazine-1-oxide from 2,6-diaminopyrazine-1-oxide - A method for the synthesis of 2,6-Diamino-3,5-dinitropyrazine-1-oxide including nitration of 2,6-diaminopyrazine-1-oxide. The step of nitration may use nitrating agents 20% Oleum/100% HNO3, 100% HNO3 and conc. H2504/100% HNO3 or nitronium tetrfluoraoborate. The synthesis of 2,6-diaminopyrazine-1-oxide may involve both the oxidation of 2,6-diaminopyrazine, the amination of a precursor 2,6-disubstitutedpyrazine-1-oxide or direct formation of the 2,6-diaminopyrazine-l-oxide from the precursor, 2-amino-6-hydroxamino-pyrazine-1-oxide. | 12-03-2009 |
| 20100137595 | VAGINAL ODORANTS - Use vaginal odorant compounds for controlling motile cell chemotaxis. | 06-03-2010 |
| 20100286394 | ORGANIC AMINE SALT OF 6-FLUORO-3-HYDROXY-2-PYRAZINECARBONITRILE AND METHOD FOR PRODUCING THE SAME - Disclosed is an organic amine salt of 6-fluoro-3-hydroxy-2-pyrazinecarbonitrile, which is excellent in crystallinity and useful as a production intermediate for 6-fluoro-3-hydroxy-2-pyrazinecarboxamide. | 11-11-2010 |
| 20110040092 | PROCESS FOR MAKING AND USING HOF.RCN - The invention relates to a process for making HOF.RCN and using it to oxidise organic substrates in a quick and safe way. The process comprises passing diluted fluorine through a conduit and RCN in water through another conduit into a microreactor to form HOF.RCN and reacting this with an organic substrates. | 02-17-2011 |
| 20110178302 | NUCLEOPHILIC FLUORINATION OF AROMATIC COMPOUNDS - Iodylbenzene derivatives substituted with electron donating as well as electron withdrawing groups on the aromatic ring are used as precursors in aromatic nucleophilic substitution reactions. The iodyl group (IO | 07-21-2011 |
| 20120123120 | No-Carrier-Added Nucleophilic [F-18] Fluorination of Aromatic Compounds - Phenyliodonium ylide derivatives substituted with electron donating as well as electron withdrawing groups on the aromatic ring are shown for use as precursors in aromatic nucleophilic substitution reactions. The iodonium ylide group is substituted by nucleophiles such as halide ions to provide the corresponding haloaryl derivatives. No-carrier-added [F-18]fluoride ion exclusively substitutes the iodonium ylide moiety in these derivatives and provides high specific activity F-18 labeled fluoro derivatives. Protected L-dopa-6-iodonium ylide derivative have been synthesized as a precursors for the preparation of no-carrier-added 6-[F-18]fluoro-L-dopa. The iodonium ylide group in this L-dopa.derivative is nucleophilically substituted by no-carrier-added [F-18]fluoride ion to provide a [F-18]fluoro intermediates which upon acid hydrolysis yielded 6-[F-18]fluoro-L-dopa. | 05-17-2012 |
| 20140024832 | METHOD FOR PRODUCING DICHLOROPYRAZINE DERIVATIVE - A method for producing a hydroxypyrazine derivative represented by formula (I) (wherein R | 01-23-2014 |
| 20160108006 | Synthesis Method of Organometallic Complex, Synthesis Method of Pyrazine Derivative, 5,6-Diaryl-2-Pyrazyl Triflate, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - Provided is a 5,6-diaryl-2-pyrazyl triflate, its synthetic method, and a method for synthesizing an organometallic complex having a triarylpyrazine ligand from the 5,6-diaryl-2-pyrazyl triflate. The triflate is readily obtained from the corresponding 5,6-diarylpyrazin-2-ol, and the palladium-catalyzed coupling of the 5,6-diaryl-2-pyrazyl triflate with an arylboronic acid derivative leads to a high yield of a triarylpyrazine derivative having high purity. The use of the triarylpyrazine derivative in the reaction with a metal compound such as a metal chloride results in an ortho-metallated organometallic complex with high purity. The high purity of the organometallic complex contributes to the extremely high durability of a light-emitting element. | 04-21-2016 |
