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4-nitro-3,5-bis(trifluoromethyl)pyrazole | 1376710-08-5

中文名称
——
中文别名
——
英文名称
4-nitro-3,5-bis(trifluoromethyl)pyrazole
英文别名
4-nitro-3,5-bis(trifluoromethyl)-1H-pyrazole
4-nitro-3,5-bis(trifluoromethyl)pyrazole化学式
CAS
1376710-08-5
化学式
C5HF6N3O2
mdl
——
分子量
249.072
InChiKey
IWMROTWQUQOFEC-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    1.9
  • 重原子数:
    16
  • 可旋转键数:
    0
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.4
  • 拓扑面积:
    74.5
  • 氢给体数:
    1
  • 氢受体数:
    9

反应信息

  • 作为反应物:
    描述:
    4-nitro-3,5-bis(trifluoromethyl)pyrazole盐酸 、 palladium 10% on activated carbon 、 氢气 作用下, 以 乙醇 为溶剂, 20.0 ℃ 、810.01 kPa 条件下, 反应 18.0h, 以86%的产率得到4-amino-3,5-bis(trifluoromethyl)-1H-pyrazole
    参考文献:
    名称:
    Filling the gap: Chemistry of 3,5-bis(trifluoromethyl)-1H-pyrazoles
    摘要:
    Pyrazoles represent important building blocks for the preparation of bioactive compounds and a large variety of materials, due to their rich coordination chemistry. Unusual and interesting properties may be imparted to molecules embodying highly fluorinated pyrazoles, but to date only few examples of polyfluorinated pyrazoles have been described. In this work we report an improved preparation of 3,5-bis(trifluoromethyl)-1H-pyrazole, the subsequent transformation into hitherto unknown 4-functionalized (F, Cl, Br, I, NO2, NH2) derivatives and the evaluation of selected chemical and physical properties of these compounds. (C) 2012 Elsevier B.V. All rights reserved.
    DOI:
    10.1016/j.jfluchem.2012.04.003
  • 作为产物:
    描述:
    六氟乙酰丙酮硫酸硝酸一水合肼 作用下, 以 乙醇 为溶剂, 反应 20.25h, 生成 4-nitro-3,5-bis(trifluoromethyl)pyrazole
    参考文献:
    名称:
    Filling the gap: Chemistry of 3,5-bis(trifluoromethyl)-1H-pyrazoles
    摘要:
    Pyrazoles represent important building blocks for the preparation of bioactive compounds and a large variety of materials, due to their rich coordination chemistry. Unusual and interesting properties may be imparted to molecules embodying highly fluorinated pyrazoles, but to date only few examples of polyfluorinated pyrazoles have been described. In this work we report an improved preparation of 3,5-bis(trifluoromethyl)-1H-pyrazole, the subsequent transformation into hitherto unknown 4-functionalized (F, Cl, Br, I, NO2, NH2) derivatives and the evaluation of selected chemical and physical properties of these compounds. (C) 2012 Elsevier B.V. All rights reserved.
    DOI:
    10.1016/j.jfluchem.2012.04.003
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文献信息

  • Nitrene Insertion into Aromatic and Benzylic C−H Bonds Catalyzed by Copper Complexes of Fluorinated Bis‐ and Tris(pyrazolyl)borates
    作者:Tharun T. Ponduru、Zhicheng Sun、Thomas R. Cundari、H. V. Rasika Dias
    DOI:10.1002/cctc.201901087
    日期:2019.10.7
    trace amounts of benzylic C−H insertion. The use of [H2B(3,5‐(CF3)2‐4‐(NO2)Pz)2]Cu(NCMe) that has an even weakly donating pyrazolate generated the arene C−H insertion product exclusively. The tris(pyrazolyl)borate complex [HB(3,5‐(CF3)2Pz)3]Cu(NCMe), in contrast, generated the benzylic amination product from mesitylene and PhI=NNs in 82 % yield with only very minor amounts of arene C−H functionalization
    化的双和三(吡唑基)络合物可催化氮芳烃插入芳烃的CH键上,从而在室温下以良好或优异的收率有效地产生胺化产物。亚,PhI = NTs(Ts =对甲苯磺酰基)和PhI = NNs(Ns =对硝基苯磺酰基)用作氮源。PhI = NNs的双(吡唑基)硼酸酯催化剂[H 2 B(3,5-(CF 3)2 PZ)2 ] Cu(NCMe)以87%的收率生产了均三甲苯芳烃CH官能化产物苄基CH插入量。利用[H的2 B(3,5-(CF 3)2 -4-(NO 2)PZ)2具有甚至弱贡献的吡唑酸盐的] Cu(NCMe)专门生成芳烃CH插入产物。相比之下,三(吡唑基)硼酸酯络合物[HB(3,5-(CF 3)2 PZ)3 ] Cu(NCMe)从均三甲苯和PhI = NNs生成苄基胺化产物,产率仅为82%,芳烃CH功能化的数量。DFT计算表明,由[HB(3,5-(CF 3)2 PZ)3 ] Cu(NCMe)和PhI
  • Silver(i) complexes of tris(pyrazolyl)borate ligands bearing six trifluoromethyl and three additional electron-withdrawing substituents
    作者:Naleen B. Jayaratna、Daniel B. Pardue、Sriparna Ray、Muhammed Yousufuddin、Krishna G. Thakur、Thomas R. Cundari、H. V. Rasika Dias
    DOI:10.1039/c3dt52152d
    日期:——
    most electrophilic metal site, which correlates with the pKa values of the free pyrazoles. [HB(4-(R)-3,5-(CF3)2Pz)3]Ag(c-COE) adducts effectively catalyze the insertion of the carbene moiety of ethyl diazoacetate into C–H bonds of 2,3-dimethylbutane. The [HB(4-(NO2)-3,5-(CF3)2Pz)3]Ag(c-COE) catalyst shows a higher selectivity for primary C–H bonds compared to the reactions catalyzed by [HB(3,5-(CF3)2Pz)3]Ag(c-COE)
    两种新的三(吡唑基)硼酸盐[HB(4-Cl-3,5-(CF 3)2 Pz)3 ] -和[HB(4-(NO 2)-3,5-(CF 3)]通过使4-Cl-3,5-(CF 3)2 PzH或4-(NO 2)反应合成了不仅高度化而且还负载有其他吸电子取代基的2 Pz)3 ] -。-3,5-(CF 3)2 PzH与NaBH 4在氮气下以无溶剂工艺进行处理,并在四氢呋喃(THF)或乙醚(Et 2O),作为它们的THF或Et 2 O加合物。这些钠盐与AgOTf在THF中的复分解反应生成[HB(4-Cl-3,5-(CF 3)2 Pz)3 ] Ag(THF)和[HB(4-(NO 2)-3,5- (CF 3)2 Pz)3 ] Ag(THF)。相应的顺式环辛烯(c -COE)配合物[HB(4-Cl-3,5-(CF 3)2 Pz)3 ] Ag(c -COE)和[HB(4-(NO 2)-3通过用顺式置换THF获得5-(CF
  • 一种用于脱除油品中二苯并噻吩、4,6-二甲基 二苯并噻吩的脱硫剂及其制备方法和应用
    申请人:郑州大学
    公开号:CN111961001B
    公开(公告)日:2021-10-15
    本发明属于石化领域油品脱技术领域,具体涉及一种新型高效脱除油品中二苯并噻吩(DBT)、4,6‑二甲基二苯并噻吩(DMDBT)的脱硫剂及其制备方法。以吡唑有机单体3,5‑双(三甲基)‑4‑硝基吡唑氧化银反应制得所述脱硫剂。本发明提供了一种新型吡唑有机单体,并通过简单的化学反应,制备获得了新型油品脱硫剂。所述脱硫剂异辛烷模拟油品中溶解度非常低,为循环使用提供了保证。对于难以脱除的二苯并噻吩(DBT)、4,6‑二甲基二苯并噻吩(DMDBT)具有很高的深度脱能力,对于解决燃油化合物带来的环境问题具有很好的应用潜力。
  • Adducts of a Triangular Copper(I) Pyrazolate with Thiophenic Compounds Featuring Short Cu(I)–S Contacts
    作者:Lulu Qu、Xiaoquan Feng、Limin Ma、Yang Wang、Seik Weng Ng、Guang Yang
    DOI:10.1021/acs.cgd.3c01238
    日期:2023.12.6
    The acidic triangular copper(I) 4-nitro-3,5-bis(trifluoromethyl)pyrazolate (Cu3pz3) and its adducts with thiophenic compounds were prepared and structurally characterized by X-ray diffraction. Except Cu3pz3·DMDBT-L, the adducts, namely, Cu3pz3·DBT, Cu3pz3·DBT·0.5C7H8, Cu3pz3·2DBT, Cu3pz3·DMDBT-S, and Cu3pz3·2DMT, feature a short intermolecular CuI–Sthienyl contact, ranging from 2.544 to 2.327 Å (DBT
    制备了酸性三角4-硝基-3,5-双(三氟甲基)吡唑(I) ( Cu 3 pz 3 )及其与噻吩化合物的加合物,并通过X射线衍射进行了结构表征。除Cu 3 pz 3 ·DMDBT- L外,加合物为Cu 3 pz 3 ·DBT、Cu 3 pz 3 ·DBT·0.5C 7 H 8、Cu 3 pz 3 ·2DBT、Cu 3 pz 3 ·DMDBT- S,和Cu 3 pz 3 ·2DMT,具有短的分子间 Cu I –S噻吩基接触,范围为 2.544 至 2.327 Å(DBT = 二苯并噻吩DMDBT = 4,6-二甲基二苯并噻吩DMT = 2,5-二甲基噻吩)。通过Cu 3 pz 3 ·DMDBT- L / S晶体结构中Cu-S距离可以区分两种晶体(无色和黄色)。通过比较本文报道的结构和通过理论计算模拟的含 Cu(I) 吸附剂吸附噻吩化合物的结构,表明Cu 3 pz 3可以用作吸附剂的有效
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