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2,3,4,5-四氟邻苯二酚 | 1996-23-2

中文名称
2,3,4,5-四氟邻苯二酚
中文别名
四氟苯-1,2-二酚;四氟邻苯二酚;1,2-二羟基-3,4,5,6-四氟苯
英文名称
3,4,5,6-tetrafluorobenzene-1,2-diol
英文别名
3,4,5,6-tetrafluorbenzene-1,2-diol;tetrafluoropyrocatechol;tetrafluorocatechol;perfluorocatechol;3,4,5,6-Tetrafluor-catechol;Tetrafluorcatechol
2,3,4,5-四氟邻苯二酚化学式
CAS
1996-23-2
化学式
C6H2F4O2
mdl
MFCD01075279
分子量
182.074
InChiKey
AQSZAISVBFUJQG-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

物化性质

  • 熔点:
    68-69°C (subl.)
  • 沸点:
    243.6±35.0 °C(Predicted)
  • 密度:
    1.765±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2.8
  • 重原子数:
    12
  • 可旋转键数:
    0
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.0
  • 拓扑面积:
    40.5
  • 氢给体数:
    2
  • 氢受体数:
    6

安全信息

  • 危险等级:
    IRRITANT
  • 危险品标志:
    Xi
  • 安全说明:
    S26,S36
  • 危险类别码:
    R36/37/38
  • 海关编码:
    2908199090
  • 危险性防范说明:
    P264,P270,P301+P312,P330
  • 危险性描述:
    H302,H315,H320,H335
  • 储存条件:
    存储条件:2-8℃,干燥且密封。

SDS

SDS:ef253f8bfecec21495f864588054ddec
查看

反应信息

  • 作为反应物:
    描述:
    2,3,4,5-四氟邻苯二酚硝酸 作用下, 以 硝基甲烷 为溶剂, 生成 四氟邻苯醌
    参考文献:
    名称:
    The Multifaceted Reactivity of o-Fluoranil
    摘要:
    In addition to Diels-Alder and hetero-Diels-Alder reactions, tetrafluoro-o-benzoquinone (o-fluoranil) undergoes nucleophilic additions, addition-eliminations, dioxole formation, and charge-transfer complexation, reacting at every site on the molecular skeleton. It also effects dehydrogenations and other oxidations. The quinone can function as a (CF)(4) synthon.
    DOI:
    10.1021/jo202193c
  • 作为产物:
    描述:
    乙醚四氟邻苯醌 反应 0.5h, 生成 2-(1-ethoxyethoxy)-3,4,5,6-tetrafluorophenol 、 2,3,4,5-四氟邻苯二酚
    参考文献:
    名称:
    邻氟尿嘧啶的光化学
    摘要:
    对邻氟苯胺的光化学行为的初步探索揭示了二聚体的形成,与烯烃的环加成反应以及从碳氢化合物,醛和醚中提取氢。
    DOI:
    10.1021/jo300506e
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文献信息

  • Single component cationic palladium proinitiators for the latent polymerization of cycloolefins
    申请人:Bell Andrew
    公开号:US20050187398A1
    公开(公告)日:2005-08-25
    Palladium compound compositions are provided in accordance with Formulae [((R) 3 E) a Pd(Q)(LB) b ] p [WCA] r , where ((R) 3 E) is a Group 15 electron donor ligand, Q is an anionic ligand, LB is a Lewis base, WCA is a weakly coordinating anion, a is 1, 2 or 3, b is 0, 1 or 2, the sum of a and b is 1, 2 or 3 and each of p and r is an integer such that the molecular charge is zero, or [(E(R) 3 )(E(R) 2 R*)Pd(LB)] p [WCA] r where E(R) 2 R* represents a Group 15 neutral electron donor ligand and where R* is an anionic hydrocarbyl containing moiety, bonded to the Pd and having a β hydrogen with respect to the Pd center. Such compound composition exhibits latent polymerization activity in the presence of polycyclic olefins.
    钯化合物组成按照以下公式提供:[((R)3E)aPd(Q)(LB)b]p[WCA]r,其中((R)3E)是第15族电子供体配体,Q是阴离子配体,LB是路易斯碱,WCA是弱配位阴离子,a为1、2或3,b为0、1或2,a和b的总和为1、2或3,p和r各自为整数,使得分子电荷为零,或[(E(R)3)(E(R)2R*)Pd(LB)]p[WCA]r,其中E(R)2R*代表第15族中性电子供体配体,R*是与Pd键合的含有阴离子烃基的部分,并且相对于Pd中心具有β氢。这种化合物组成在多环烯烃存在时表现出潜在的聚合活性。
  • Lewis Acidity of Bis(perfluorocatecholato)silane: Aldehyde Hydrosilylation Catalyzed by a Neutral Silicon Compound
    作者:Allegra L. Liberman-Martin、Robert G. Bergman、T. Don Tilley
    DOI:10.1021/jacs.5b02807
    日期:2015.4.29
    N'-diisopropylbenzamide. The potent Lewis acidity of Si(cat(F))2 was suggested from catalytic hydrosilylation and silylcyanation reactions with aldehydes. Mechanistic studies of hydrosilylation using an optically active silane substrate, R-(+)-methyl-(1-naphthyl)phenylsilane, proceeded with predominant stereochemical retention at silicon, consistent with a carbonyl activation pathway. The enantiospecificity
    制备了双(全氟儿茶酚)硅烷 Si(cat(F))2,并用氟化物、三乙基氧化膦和 N,N'-二异丙基苯甲酰胺证明了与路易斯碱的化学计量结合。Si(cat(F))2 的强路易斯酸性是从催化氢化硅烷化和与醛的甲硅烷基氰化反应中得出的。使用光学活性硅烷底物 R-(+)-甲基-(1-萘基)苯基硅烷进行氢化硅烷化的机理研究,在硅上具有主要的立体化学保留,与羰基活化途径一致。对映特异性取决于溶剂和盐的影响,增加溶剂极性或添加 NBu4BAr(F)4 导致对映体比率降低。介质效应与离子机制一致,其中氢化物转移发生在硅-氧键形成之前。
  • [EN] CATALYSTS FOR EFFICIENT Z-SELECTIVE METATHESIS<br/>[FR] CATALYSEURS POUR UNE MÉTATHÈSE Z-SÉLECTIVE EFFICACE
    申请人:TRUSTEES BOSTON COLLEGE
    公开号:WO2014201300A1
    公开(公告)日:2014-12-18
    The present application provides, among other things, compounds and methods for metathesis reactions. In some embodiments, provided compounds promote highly efficient and highly Z-selective metathesis. In some embodiments, provided compounds and methods are particularly useful for producing allyl alcohols. In some embodiments, provided compounds have the structure of formula I. In some embodiments, provided compounds comprise ruthenium, and a ligand bonded to ruthenium through a sulfur atom.
    本申请提供了化合物和用于交换反应的方法,其中提供的化合物在某些实施例中促进高效且高Z-选择性的交换反应。在某些实施例中,提供的化合物和方法特别适用于生产烯丙醇。在某些实施例中,提供的化合物具有式I的结构。在某些实施例中,提供的化合物包括钌,并且通过硫原子与钌结合的配体。
  • Probing substituent effects on the activation of H2 by phosphorus and boron frustrated Lewis pairs
    作者:Rebecca C. Neu、Eva Y. Ouyang、Stephen J. Geier、Xiaoxi Zhao、Alberto Ramos、Douglas W. Stephan
    DOI:10.1039/c001133a
    日期:——
    The impact of substituent changes on phosphorus and boron-containing frustrated Lewis pairs (FLPs) has been examined. The phosphites (RO)3P R = Me, Ph form classical Lewis acid–base adducts of the formula (RO)3PB(C6F5)3 R = Me 1; R = Ph 2, whereas P(O-2,4-tBu2C6H3)3 and P(O-2,6-Me2C6H3)3 generate FLPs. Nonetheless, these latter combinations do not react with H2. The more basic phosphinite tBu2POR, R = tBu 3 reacts with B(C6F5)3 to give (tBu2(H)PO)B(C6F5)36. The related species tBu2POR, R = Ph 4; 2,6-Me2C6H35 showed no reaction with B(C6F5)3 but the FLPs react under H2 (4 atm) to give [tBu2P(OR)H][HB(C6F5)3] R = Ph 7 and 2,6-Me2C6H38. Similarly, tBu2PCl in combination with B(C6F5)3, generates an FLP that upon addition of H2, gives [tBu2PH2][ClB(C6F5)3] 9 albeit in low yield. The diborane 1,4-(C6F5)2B(C6F4)B(C6F5)2 in combination with either tBu3P or (C6H2Me3)3P generates FLPs that react with H2 to give [R3PH]2[1,4-(C6F5)2HB(C6F4)BH(C6F5)2] (R = tBu 11, C6H2Me312). Similarly PhB(C6F5)2 and tBu3P react with H2 giving [tBu3PH][HBPh(C6F5)2] 13. The combination of B(OC6F5)3 and PtBu3 also generate an FLP which reacts with H2 to give [HPtBu3][B(OC6F5)4] 14, the product of substituent redistribution. The boronic esters, (C6H4O2)BC6F515, (C6H3FO2)BC6F516 and (C6F4O2)BC6F517, and the borate esters B(OC6H3(CF3)2)318, B(OC6H2F3)319 and B(OC6H4CF3)320 were prepared and shown to generate FLPs with tBu3P or (C6H2Me3)3P. Nonetheless, no reaction with H2 was observed for 15-17. Collectively these data suggest that there is a threshold of combined Lewis acidity and basicity that is required to effect the splitting of H2.
    替代基变化对含磷和硼的挫折路易斯对(FLPs)的影响进行了研究。磷酸酯 (RO)3P(R = Me,Ph)形成经典的路易斯酸碱加合物,化学式为 (RO)3PB(C6F5)3(R = Me 1;R = Ph 2),而 P(O-2,4-tBu2C6H3)3 和 P(O-2,6-Me2C6H3)3 则生成 FLPs。然而,这些后者组合不与 H2 反应。更基本的磷酸亚酯 tBu2POR(R = tBu 3)与 B(C6F5)3 反应生成 (tBu2(H)PO)B(C6F5)36。相关物种 tBu2POR(R = Ph 4;2,6-Me2C6H35)与 B(C6F5)3 不反应,但在 H2(4 atm)下 FLPs 反应生成 [tBu2P(OR)H][HB(C6F5)3](R = Ph 7 和 2,6-Me2C6H38)。类似地,tBu2PCl 与 B(C6F5)3 组合生成一个 FLP,该 FLP 在添加 H2 后生成 [tBu2PH2][ClB(C6F5)3] 9,尽管产率较低。二硼烷 1,4-(C6F5)2B(C6F4)B(C6F5)2 与 tBu3P 或 (C6H2Me3)3P 组合生成 FLPs,这些 FLPs 与 H2 反应生成 [R3PH]2[1,4-(C6F5)2HB(C6F4)BH(C6F5)2](R = tBu 11,C6H2Me312)。同样,PhB(C6F5)2 和 tBu3P 与 H2 反应生成 [tBu3PH][HBPh(C6F5)2] 13。B(OC6F5)3 和 PtBu3 的组合也生成一个 FLP,该 FLP 与 H2 反应生成 [HPtBu3][B(OC6F5)4] 14,这是取代基重新分布的产物。已制备以下硼酸酯:(C6H4O2)BC6F515、(C6H3FO2)BC6F516 和 (C6F4O2)BC6F517,以及硼酸盐酯 B(OC6H3(CF3)2)318、B(OC6H2F3)319 和 B(OC6H4CF3)320,表明这些酯与 tBu3P 或 (C6H2Me3)3P 可以生成 FLPs。然而,对于 15-17 号化合物未观察到与 H2 的反应。综合这些数据表明,实现 H2 分裂所需的路易斯酸度和碱度的结合存在一个阈值。
  • METHOD FOR MANUFACTURING ESTER
    申请人:Ishihara Kazuaki
    公开号:US20130217898A1
    公开(公告)日:2013-08-22
    The present invention relates to a method for manufacturing an ester from a ketone or an aldehyde, which is a reactive substrate, by a Baeyer-Villiger oxidation reaction using hydrogen peroxide, and in this method, as a catalyst, M(BAr 4 ) n , which is a metal borate, is used (M represents an alkali metal or an alkaline earth metal; Ar represents an aryl; and n is the same number as the valence of M). For example, when cyclohexanone was used as the reactive substrate, and Sr[B(3,5-CF 3 C 6 H 3 ) 4 ] 2 was used as the catalyst, ε-caprolactone was obtained at an isolated yield of 82%.
    本发明涉及一种从酮或醛(作为反应底物)制造酯的方法,该方法通过使用过氧化氢进行巴耶-维利格氧化反应,在该方法中,作为催化剂使用了M(BAr4)n,该催化剂是一种金属硼酸盐(M代表碱金属或碱土金属;Ar代表芳基;n与M的化合价相同)。例如,当环己酮作为反应底物,Sr[B(3,5-CF3C6H3)4]2作为催化剂时,得到了ε-己内酯,其分离收率为82%。
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