18 results about "Nitroethylene" patented technology

The invention relates to application of a nitrostyrolene compound in preventing, controlling or resisting plant pathogenic nematodes and a preparation of the nitrostyrolene compound, and relates to the field of pesticides. The nitrostyrene compound is selected from the group consisting of beta-nitrostyrene, trans-nitrostyrene, trans-4-fluoro-beta-nitrostyrene, trans-4-bromo-beta-nitrostyrene, 4-methoxy-beta-nitrostyrene, trans-4-(2-nitrovinyl) cyanobenzene, 1-(3-fluorophenyl)-2-nitroethylene, (E)-1-fluoro-2-(2-nitrovinyl) and one or more of benzene. The nitrostyrene compound shows excellent insecticidal activity on plant root-knot nematodes and pine wood nematodes, has the advantages of simple structure, easiness in synthesis, good control effect and the like, and has a good application prospect in the aspect of controlling root-knot nematode diseases and pine wood nematode diseases. The compound can be applied to development of novel pesticide preparations for killing root-knot nematodes and pine wood nematodes.

The present in vention is directed to methods of treating a metabolic disorder in a subject in need thereof comprising administering to the subject a therapeutically effective amount of a nitro-vinyl benzene compound and administering to the subject a therapeutically effective amount of a GLP-1 agonist or analog. The present invention is also directed to kits and / or pharmaceutical compositions suitable for practicing the claimed methods.

The present application provides an electrolyte and an electrochemical device comprising the same, the electrolyte comprising: a compound of formula I; in the formula, R1, R2, R3, R4 and R5 are respectively and independently selected from any one of fluorine atoms, trifluoromethyl, C1-C3 alkyl groups, cyano groups, nitryl groups, vinyl groups and ethynyl groups. Based on the technical scheme provided by the invention, the circulation and storage performance of the battery cell can be remarkably improved.

The present in vention is directed to methods of treating a metabolic disorder in a subject in need thereof comprising administering to the subject a therapeutically effective amount of a nitro-vinyl benzene compound and administering to the subject a therapeutically effective amount of a GLP-1 agonist or analog. The present invention is also directed to kits and / or pharmaceutical compositions suitable for practicing the claimed methods.

The application discloses a 2-((naphthalene-2-ylmethyl)amino)acetamide compound or a pharmaceutically acceptable salt thereof with a structure as shown in formula I: wherein R 1 is H or CH3; R 2 is H or CH3; X is O, S or NH; A ring is 3-6-membered cycloalkyl, 4-6-membered heterocyclyl, aryl or heteroaryl; R 3 is H, halogen, methyl, trifluoromethyl, methoxy, cyano, nitro, vinyl or ethynyl. The compound of the application has good reversible inhibitory effect on MAOs, especially, the MAO-B inhibitory activity is significantly better than that of the third generation MAO-B inhibitor safinamide, and has reversible inhibitory effect on MAO-B, and can be used for treating neurodegenerative diseases such as Parkinson's disease and Alzheimer's disease.

The invention discloses a method for detecting related substances in N-methyl-1-methylthio-2-nitrovinylamine. The method comprises the following steps: (1) preparing a test solution; (2) preparing a contrast solution; (3) chromatographic detection, wherein chromatographic analysis conditions are as follows: octadecylsilane chemically bonded silica is adopted as a chromatographic column of a filler; carrying out gradient elution by using the mobile phase A and the mobile phase B; and the detection wavelength is 352 nm. According to the present invention, the efficient and accurate high performance liquid chromatography is adopted to perform determination, the impurity separation ability is significantly improved through the optimized gradient elution program and the design of the detection wavelength, the accurate quantification of the related substance is achieved by using the self-contrast method, and the method has advantages of strong specificity, high sensitivity, simple operation and good reproducibility.

The application provides an electrolyte and an electrochemical device containing the electrolyte, wherein the electrolyte contains a compound of formula I and a fluorinated carboxylic acid ester; wherein R 1 , R 2 , R 3 , R 4 and R 5 are each independently selected from any one of a fluorine atom, a trifluoromethyl group, a C1-C3 alkyl group, a cyano group, a nitro group, a vinyl group and an ethynyl group; the mass content of the compound of formula I is A and the mass content of the fluorinated carboxylic acid ester is S based on the total mass of the electrolyte, wherein A satisfies 0.01%≤A≤5%; S satisfies 5%≤S≤80%; and A / S satisfies 0.001≤A / S≤1. Through the technical scheme provided by the application, the kinetic performance of the electrolyte can be improved and the storage and cycle performance of the battery cell can be improved.

The invention relates to the technical field of chemistry, and discloses a diarylether beta-nitroethylene compound as well as a preparation method and application thereof. The compound is a compound as shown in a formula I or a stereoisomer, a geometric isomer, a tautomer, a racemate, nitrogen oxide, hydrate, solvate and pharmaceutically acceptable salt of the compound as shown in the formula I. In the formula I, R is a mono-substituent or multi-substituent at any position of a six-membered aromatic ring, and the substituents can be the same or different and can be different from each other. R is selected from at least one of hydrogen, halogen, alkyl, alkoxy or halogenated alkyl; r1 is hydrogen, methyl or bromine; r2 is hydrogen or chlorine; x is carbon or nitrogen. The compound can be used for treating plant diseases and inhibiting the growth of water-blooming cyanobacteria.

The application discloses a preparation method of a monoamine oxidase B inhibitor, and comprises the following steps: 6-fluoroindole and 1-(dimethylamino)-2-nitroethylene are subjected to trifluoroacetic acid catalysis to generate 6-fluoro-3-[(E)-2-nitrovinyl]-1H-indole, and then subjected to sodium borohydride and iron powder / hydrochloric acid reduction to generate 6-fluoro-tryptamine; under an acidic condition, Pictet-Spengler reaction is carried out between 6-fluoro-tryptamine and ethyl glyoxylate to generate ethyl 7-fluoro-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-1-carboxylate and 7-fluoro-4,9-dihydro-3H-pyrido[3,4-b]indole-1-carboxylate, and then subjected to oxidative dehydrogenation aromatization reaction to generate ethyl 7-fluoro-9H-pyrido[3,4-b]indole-1-carboxylate; under the catalysis of aluminum trichloride, amine ester exchange reaction is carried out between ethyl 7-fluoro-9H-pyrido[3,4-b]indole-1-carboxylate and 3-fluorobenzylamine to generate a target compound. The method has high overall yield.

The present application provides the use of aromatic nitroethylenes, in particular, the present application provides the use of a compound represented by formula (I), a stereoisomer or a pharmaceutically acceptable salt thereof for preparing a medicament for modulating the dimer activity of nuclear receptor RXR or treating neurodegenerative diseases.

A method that includes administering to a subject having a stimulators of interferon genes (STING)-dependent inflammatory or autoimmune condition a therapeutically effective amount of a compound that includes a nitrovinyl moiety conjugated to an aromatic moiety.

The present invention is directed to methods of treating a metabolic disorder in a subject in need thereof comprising administering to the subject a therapeutically effective amount of a nitro-vinyl benzene compound and administering to the subject a therapeutically effective amount of a GLP-1 agonist or analog. The present invention is also directed to kits and / or pharmaceutical compositions suitable for practicing the claimed methods.

The present invention provides a catalyst system for ethylene oligomerization, its preparation method and application. The catalyst system includes: a chloro-2-C1-C6 acyl-1,10-phenanthroline-condensed-2,6-dimethylaniline iron(II) complex shown in formula (1), an aluminum-containing cocatalyst, water and cyclohexane; in formula (1), R is selected from C1-C6 alkyl groups; R1-R6 are the same or different and are each independently selected from hydrogen, C1-C6 alkyl groups, halogens, C1-C6 alkoxy groups and nitro groups. Under the action of this catalyst system for ethylene oligomerization, due to the action of the promoter water, the oligomerization reaction is initiated rapidly, operates stably, has good repeatability, and the reaction temperature can be 60-80 °C. The heat removal medium for the reaction can use condensed water, which reduces energy consumption compared with chilled water. Thus, it overcomes the technical prejudice of those skilled in the art and achieves unexpected technical effects.

The application provides an electrolyte and an electrochemical device containing the electrolyte, wherein the electrolyte contains a compound of formula I; wherein R 1 , R 2 , R 3 , R 4 and R 5 are each independently selected from any one of a fluorine atom, a trifluoromethyl group, a C1-C3 alkyl group, a cyano group, a nitro group, a vinyl group and an ethynyl group. Based on the above technical solution provided in the application, the cycle and storage performance of the battery cell can be significantly improved.

The invention provides an electrolyte and an electrochemical device comprising the electrolyte, and the electrolyte comprises a compound shown as a formula I and fluorocarboxylic ester, in the formula, R1, R2, R3, R4 and R5 are respectively and independently selected from any one of fluorine atoms, trifluoromethyl, C1-C3 alkyl groups, cyano groups, nitryl groups, vinyl groups and ethynyl groups, and R1, R2, R3, R4 and R5 are respectively and independently selected from any one of fluorine atoms, trifluoromethyl, C1-C3 alkyl groups, cyano groups, nitryl groups, vinyl groups and ethynyl groups; based on the total mass of the electrolyte, the mass content of the compound shown in the formula I is A, the mass content of the fluoro-carboxylic ester is S, and A is larger than or equal to 0.01% and smaller than or equal to 5%; s satisfies 5% < = S < = 80%; a / S satisfies 0.001 < = A / S < = 1. According to the technical scheme provided by the invention, the dynamic performance of the electrolyte can be improved, and the storage and cycle performance of the battery cell can be improved.

The application discloses a fluorescent probe for specifically and rapidly marking a double-cysteine tag protein, a preparation method and application, and the probe can emit a fluorescent signal only when reacting with two cysteines simultaneously. The newly designed fluorescent probe can rapidly react with a recombinant protein containing a specific double-cysteine-containing peptide tag, and can mark POI in a site-specific manner. The fluorescent probe has a structure as shown in formula I, is named as 3,7-dihydroxy-5,5-dimethyl-4,6-bis((E)-2-nitrovinyl)-3'H,5H spiro[di-benzo[b,E]silicon-10,1'-isobenzofuran]-3'-ketone, and is abbreviated as Si-FLNO2.

To provide nitro-vinyl-pyrazole compounds, which are valuable intermediates in the production of agrochemicals and pharmaceuticals, and methods of producing such compounds.SOLUTION: The invention provides compounds of the following formula in the figure, where ring A is one of the lower formulas A1 and A2 in the figure. In the formulas A1 and A2: RB2 is C1-C3 alkyl; and RB3SN is halogen or C1-C3 fluoroalkyl.SELECTED DRAWING: None