CAS: 2105-61-5; 1,2,4-Trifluoro-5-Nitrobenzene

上下游产品

CAS号367-34-0 2,4,5-三氟苯胺 | CAS号578-28-9 4-氯-2,5-二氟硝基苯 | CAS号367-23-7 1,2,4-三氟苯 | CAS号78056-39-0 4,5-二氟-2-硝基苯胺 | CAS号195136-62-0 1-氟-2,4-二甲氧基-5-硝基苯 | CAS号195136-65-3 5-氟-2,4-二甲氧基苯胺 | CAS号103068-41-3 4-氟间苯二酚 | CAS号322-67-8 Benzene,1,1'-th... | CAS号120103-19-7 4-氨基-2,5-二氟苯酚 | CAS号17715-70-7 1-氟-2,4-二甲氧基苯 | CAS号698-52-2 1,4-二氨基-2,5-二氟苯 | CAS号879288-18-3 Methyl 4-(2,7-d... | CAS号4247-61-4 N-(2,5-difluoro...

2,4-二氯氟苯置于potassium Fluoride,硫酸,硝酸体系中,用 环丁砜 用作溶剂,化学反应 20.0H,反应生成2,4,5-三氟硝基苯
参考文献:2,4,5-三氟苯乙酸的制备方法
标题:2,4,5-三氟苯乙酸的制备方法
摘要:本发明公开了一种2,4,5‑三氟苯乙酸的制备方法,属于化学药物中间体制备方法技术领域,利用2,4‑二氯氟苯为原料,经硝化,氟化,氯代,偶联和水解反应制备2,4,5‑三氟苯乙酸.本发明方法,采用的原料相对廉价易得,工艺路线成熟,操作简单,收率较高,具有较高的工业化价值.

专利信息

专利号:US-6229055-B1
优先权日:1996-04-12
标题 :Synthesis of fluorinated xanthene derivatives
发明人：KLAUBERT DIETER H; GEE KYLE R
权利人:MOLECULAR PROBES INC
摘要:Facile syntheses for fluorinated resorcinol and aminophenol derivatives are provided that yield isomer-free products in good yield. These novel methods use generally available precursors and standard laboratory reagents and equipment to reproducibly produce these synthetically useful reagents in relatively large quantities. The resulting fluorinated resorcinols and aniinophenols possess utility in the preparation of fluorinated fluorescein and rhodol dyes.

专利号:CN-117466729-A
优先权日:2023-12-28
标题:A kind of synthesis method of 2,4,5-trifluorophenylacetic acid

专利号:US-5756834-A
优先权日:1995-11-11
标 题:Process for preparing fluorinated aromatics
发明人：PASENOK SERGEJ; APPEL WOLFGANG
权利人:HOECHST AG
摘要:It is known to prepare fluorinated aromatic compounds of the formula I in which X, Y and Z can have the meaning specified in the description, by reacting aromatic compounds of the formula II in which X, Y and Z have the meaning specified for formula I, with fluorine in a reaction medium. According to the invention, the direct fluorination is carried out in a reaction medium containing polyfluoroalkanesulfonic acids of the formula IIICFnH3-n(CFY)m-SO3H(III)in which m, n and Y have the meaning specified in the description. By this means, it is possible, particularly advantageously to provide a process, which improves the known processes not only with regard to the selectivity and the yield, but also with respect to the quality of the resulting products of the process in a manner not readily predictable. Fluorinated aromatic compounds of the formula I as intermediates for active compound synthesis.

专利号:CN-119977815-A
优先权日:2025-02-11
标 题:Synthesis method of 3-bromo-5-fluoro-2, 4-dimethylaniline and intermediate compound thereof