The disorder of the thienyl ring and〓 groups in 11, 12 and the disorder of water in the packing of 14 may be responsible for their triboluminescent activities.Ⅲ. A dinuclear triboluminescent complex,〓(15)(where TTA=2- thenoyltrifluoroacetone, PyO=N-oxide pyridine), was synthesised and its crystal structure and triboluminescence spectrum were determined.

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Reactions of 2,6-pyridinedicarboxylic acid or 2,6-dibromomethyl pyridine with 5-(4-hydroxyphenyl)-10,15,20-triphenyl porphyrin, 5-(4-aminophenyl)-10,15,20 triphenyl porphyrin gave three novel bridged diporphyrins 3-5, respectively.

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The optimum condition of spectrofluorimetric determination of uranyl ion in pyridine 2,6 dicarboxylic acid β cydodextrin system is studied.

研究了吡啶 2 ，6 二羧酸β環(huán)狀糊精體系熒光分光光度法測定鈾酰離子的最佳條件以及某些稀土共存離子對熒光體系的干擾性欧美久久，并應用于人工樣品的測定好看黄色视频。

Analytical results showed that the upper clear liquid of pyrolysis oils was mainly consisted of water-soluble substances,such as phenol,cresol,xylenol,sugars,hydantoins,morpholines,pyranones and pyridine derivatives compounds,etc.,while the lower sediment was mainly insoluble or hardly water-soluble substances,such as the big substituent phenolics(the number of substituent carbon atoms of which is greater than or equal to 2),aryl phosphate esters,fatty acid esters and nitrile compounds,and so on.

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The main pyridine classes with fungicidal, insecticidal/acaricidal and herbicidal activity are presented, together with their structures and biological activities.

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It manufactures heterocyclic, such as pyrazine, thiazole, furan, pyridine and sulf-compounds with their ramifications; and pharmaceutical intermediates such as veratraldehyde, isovanillin, sufurol, diacetyl, acetoin, and 2, 5-dimethyl pyrazine.

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Methods Compound 3 was got via the formation of the amide from 2-chloro-3-amino-4-methyl pyridine and 2-chloronicotinoyl chloride, and then nevirapine was acquired by the aminolysis of 3 with cyclopropylamine in an autoclave, followed by the intramolecular nucleophilic substitution.

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Hrough copolymerization of styrene with few quantity of methacrylic acid, maleic anhydrate or 4-vinyl pyridine respectively and of butyl methacrylate with maleic anhydrate, the functional groups carboxyl, simple anhydride and pyridyl have been introduced respectively to the chain of PS or PBma.

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Rizaben was synthesized directly from anthranilic acid ,3,4- dimethoxy cinnamic acid, and benzene sulfochloride using 3EA/pyridine as compounded solvent.

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In part one, the reactions of some active fluorine-containing compounds such as 2, 2-dihydropolyfluoroalkanoic acids and ethyl 2-hydropolyfluoroalkenoates were studied and various fluorine-containing heterocyclic compounds were synthesized. Using 2, 2-dihydropolyfluoroalkanoic acids as the starting material, 4-fluoroalkyl quinolin-2-ols, 2- [ -1-hydropolyfluoro-1-alkenyl] -4H-3, 1-benzoxazin-4-ones, 1-aryl -4, 9-dihydro-3-fluoro-alkyl-1H-pyrazo [3, 4-b] quinolin-4-ones, 5-fluoroalkyl-12H-quin olino [2, 1-b] quinazolin-12-ones, 4-fluoroalkyl-1, 3-dihydro-1, 5-benzodiazepin-2-ones and 4-fluoroalkyl-2H-pyrido [1, 2-a] pyrimidin-2-ones were synthesized through its condensation reaction with anilines, anthranilic acid, N'-aryl-o-aminobenzamides, o-nitro aniline, o-amino pyridine and their derivatives and the subsequent transformations. 5-Fluoroalkyl isoxazolidines, 3-fluoro-3-fluoroalkylisoxazolidino [4, 3-c] quinolin-4-ones, 3-fluoroalkylisoxazolino [4, 3-c] quinolin-4-ones and 2-aryl-3per fluoroacylindoles were synthesized by inter-and intramolecular 1, 3-dipolar cycloaddition of fluorine-containing olefins and nitrones.

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