• 2,3-二氯-5-三氟甲基吡啶杀虫剂脲类合成农药关键中间体

    2,3-Dichloro-5-trifluoromethylpridine is a key intermediate of synthesis pesticides of insecticide chlorfluazuron.

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  • 本文介绍了甲基苯硫醚制备方法它的具体应用

    Various method of preparation and application of Sulfide phenyl trifluoromethyl are introduced.

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  • 最后4 -甲基烟酸应用进一步研究给予展望。

    Finally, the prospect of the application and further research of 4-trifluoromethyl nicotinic acid was given.

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  • 这种混合物中包含带正电荷离子负电荷的聚三氟甲基磺胺离子。

    This compound consists of positively charged potassium ions and negatively charged trifluoromethylsulfonates.

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  • 介绍不饱和2 -三氟甲基丙烯酸制备方法应用情况。

    Various method of preparation and application of 2-trifluoromethyl acrylic acid, which is an unsaturated acid containing-fluorine, are reviewed.

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  • 邻位、间位、对位氟甲基苯酚都是重要医药农药染料中间体

    The o-, m-, p-trifluoromethyl phenol were important intermediates in medicines, pesticides and dyes.

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  • 报道高效除草剂磺隆中间体2-巯基-3-三氟甲基吡啶的合成方法。

    The synthesis of the intermediate 2-mercapto-3-trifluoromethylpyridine which was highly active herbicide flazasulfuron was reported.

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  • 通过试剂方法,合成甲基苯基环已基化合物,反应率在到60%。

    Synthesis of phenylcyclohexane trifluoromethyl ketones by lithium reagent is studied and the yield of reaction is 60%.

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  • 其中通过催化对称转化手性三氟甲基化合物是合成类化合物的重要策略之一。

    One of the applicable strategies for construction of these moleculars is asymmetric transformations of prochiral trifluoromethylated compounds.

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  • 以对三氟甲基苯胺为原料,经重氮化、化、水解制得对甲基苯甲醛收率35

    The starting reagent, p-trifluoromethylaniline, was subjected to diazotization, oximation, and hydrolyzationto synthesize p-trifluoromethyl benzaldehyde, with a total yield of 35.

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  • 取代2'3'-二脱氧-5-三氟甲基尿嘧啶核苷类,它们制备方法以及它们医药方面的应用

    Substituted 2', 3'-dideoxy-5-trifluoromethylur idines, processes for their preparation and their use in medicaments.

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  • 基础上合成了4-三氟甲基烟酸两个衍生物4-三氟甲基酰胺、N-苄基-4-三氟甲基烟酰胺。

    On this basis, its two derivatives 4-(trifluoromethyl)nicotinamide and N-benzyl-4-trifluoromethyl-3-pyridine carboxamide were also synthesized.

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  • 以邻三氟甲基苯胺为起始原料,二水氯化催化剂盐酸-双氧水为氯化合成4 -氯- 2 -三氟甲基苯胺。

    4-chloro-2-trifluoromethyl aniline was synthesized from 2-trifluoromethyl aniline, using hydrochloric acid-hydrogen peroxide as the chlorination agent and cupric chloride as the catalyst.

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  • 论还了2,4-二氯-3,5-二硝基三氟甲基合成方法影响收率反应温度,反应时间催化剂进行了研究。

    This paper reported the synthetic method of 2, 4-dichloro-3, 5-dinitrotrifluorotoluene. The effect of temperature, time, and catalyst on yield were studied.

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  • 前言2,3-二氯-5-三氟甲基吡啶合成农药杀虫剂定虫除草剂氯禾灵杀菌剂啶胺关键中间体

    Abstrat:2,3-Dichloro-5-trifluoromethylpridine is a key intermediate of synthesis pesticides of insecticide chlorfluazuron , herbicide haloxyfop and bactericide fluazinam .

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  • 发明涉及新的特别三氟甲基卤素取代1,3-二苯基,以及它们药物组合物制备作为活性成分用途

    The invention relates to novel specifically trifluoromethyl and halogen substituted 1,3-diphenyl ureas and their use as active ingredients in the preparation of pharmaceutical compositions.

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  • 方法:以3-三氟甲基- 4-氰基苯胺2- 甲基丙烯为起始原料经过化、 环氧化、取代氧化反应合成比卡鲁胺。

    Methods:Bicalutamide was prepared from 4-cyano-3-(trifluoromethyl) aniline and 2-methylacryloyl chloride by four steps: acylation, cyclization, substitution, and oxidization.

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  • 本文以邻甲基苯胺、对氯苯胺、间三氟甲基苯胺5-三氟甲基-1,3-苯二胺单体,利用电化学方法,得到了上述苯胺衍生物的聚合物薄膜

    In this paper, polymer films were prepared with o-toluidine, p-chloroaniline, m-trifluoro methylaniline and 5-trifluoromethyl-1,3-diaminobenzene as monomer by electrochemical method.

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  • 通过近年某些国家对来米特副作用论证,分析了可能米特应用市场造成一定的影响,进而影响中间体5 甲基异唑4 甲酰氯三氟甲基苯胺的市场。

    Through the demonstration on side-effect of leflunomide made by some countries recently, the probable impact to application market of leflunomide and to its intermediates could be given.

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  • 所用滴定剂十六烷基甲基化铵,指示极为硼酸根离子选择电极

    Cetyltrimethylammonium bromide is used as a titrant and a fluoroborate ion-selective electrode as an indicator electrode.

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  • 1,3,5-甲基三氟丙基)硅氧烷阴离子本体开环缩聚合成了硅生对生胶进行过氧化物交联

    Poly(methyl(trifluoropropyl) siloxane)(PMTFPS) was prepared by bulk ring-opening polymerization of 1,3,5-trimethyl-trifluoropropyl cyclotrisiloxane, and crosslinked by peroxide compound.

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  • 发明公开了侧向甲基双末端烷基联苯及其制备方法应用

    The invention discloses side difluoro methylene ether bridged bond paired-end alkyl terphenyl, a preparation method and application thereof.

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  • 发明公开了侧向甲基双末端烷基联苯及其制备方法应用

    The invention discloses side difluoro methylene ether bridged bond paired-end alkyl terphenyl, a preparation method and application thereof.

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