2,3-二氯-5-三氟甲基吡啶是杀虫剂氯氟脲类合成农药的关键中间体。
2,3-Dichloro-5-trifluoromethylpridine is a key intermediate of synthesis pesticides of insecticide chlorfluazuron.
本文介绍了三氟甲基苯硫醚的制备方法和它的具体应用。
Various method of preparation and application of Sulfide phenyl trifluoromethyl are introduced.
最后,对4 -三氟甲基烟酸的应用及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.
这种混合物中包含了带正电荷的钾离子和带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.
介绍一种含氟不饱和酸2 -三氟甲基丙烯酸的制备方法和应用情况。
Various method of preparation and application of 2-trifluoromethyl acrylic acid, which is an unsaturated acid containing-fluorine, are reviewed.
邻位、间位、对位三氟甲基苯酚都是重要的医药、农药和染料中间体。
The o-, m-, p-trifluoromethyl phenol were important intermediates in medicines, pesticides and dyes.
报道了超高效除草剂啶嘧磺隆的中间体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.
通过锂试剂的方法,合成了三氟甲基苯基环已基酮化合物,反应产率在到60%。
Synthesis of phenylcyclohexane trifluoromethyl ketones by lithium reagent is studied and the yield of reaction is 60%.
其中通过催化不对称转化潜手性三氟甲基化合物是合成这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.
以对三氟甲基苯胺为原料,经重氮化、肟化、水解制得对三氟甲基苯甲醛,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.
取代的2',3'-二脱氧-5-三氟甲基尿嘧啶核苷类,它们的制备方法以及它们在医药方面的应用。
Substituted 2', 3'-dideoxy-5-trifluoromethylur idines, processes for their preparation and their use in medicaments.
在此基础上,还合成了4-三氟甲基烟酸的两个衍生物:4-三氟甲基烟酰胺、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.
以邻三氟甲基苯胺为起始原料,二水氯化铜为催化剂,盐酸-双氧水为氯化剂,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.
论还了2,4-二氯-3,5-二硝基三氟甲基苯的合成方法;对影响收率的反应温度,反应时间和催化剂进行了研究。
This paper reported the synthetic method of 2, 4-dichloro-3, 5-dinitrotrifluorotoluene. The effect of temperature, time, and catalyst on yield were studied.
前言:2,3-二氯-5-三氟甲基吡啶是合成农药杀虫剂定虫隆、除草剂吡氟氯禾灵和杀菌剂氟啶胺的关键中间体。
Abstrat:2,3-Dichloro-5-trifluoromethylpridine is a key intermediate of synthesis pesticides of insecticide chlorfluazuron , herbicide haloxyfop and bactericide fluazinam .
本发明涉及新的特别由三氟甲基和卤素取代的1,3-二苯基脲,以及它们在药物组合物的制备中作为活性成分的用途。
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.
方法:以3-三氟甲基- 4-氰基苯胺和2- 甲基丙烯酰氯为起始原料经过酰化、 环氧化、取代和氧化四步反应合成比卡鲁胺。
Methods:Bicalutamide was prepared from 4-cyano-3-(trifluoromethyl) aniline and 2-methylacryloyl chloride by four steps: acylation, cyclization, substitution, and oxidization.
本文以邻甲基苯胺、对氯苯胺、间三氟甲基苯胺和5-三氟甲基-1,3-苯二胺为单体,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.
通过近年某些国家对来氟米特副作用的论证,分析了可能对来氟米特的应用市场造成一定的影响,进而影响其中间体5 甲基异唑4 甲酰氯和对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.
所用滴定剂为十六烷基三甲基溴化铵,指示电极为氟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.
由1,3,5-三(甲基三氟丙基)环三硅氧烷的阴离子本体开环缩聚合成了氟硅生胶,并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.
本发明公开了侧向二氟亚甲基醚桥键双末端烷基三联苯及其制备方法与应用。
The invention discloses side difluoro methylene ether bridged bond paired-end alkyl terphenyl, a preparation method and application thereof.
本发明公开了侧向二氟亚甲基醚桥键双末端烷基三联苯及其制备方法与应用。
The invention discloses side difluoro methylene ether bridged bond paired-end alkyl terphenyl, a preparation method and application thereof.
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