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(R)-2-(4-(三氟甲基)苯基)环氧乙烷 | 252877-04-6

中文名称
(R)-2-(4-(三氟甲基)苯基)环氧乙烷
中文别名
——
英文名称
(R)-2-(4-trifluoromethylphenyl)oxirane
英文别名
(2R)-2-[4-(trifluoromethyl)phenyl]oxirane
(R)-2-(4-(三氟甲基)苯基)环氧乙烷化学式
CAS
252877-04-6
化学式
C9H7F3O
mdl
MFCD25993963
分子量
188.149
InChiKey
KGAKWTQCQUVXEF-QMMMGPOBSA-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

  • 沸点:
    210.5±35.0 °C(Predicted)
  • 密度:
    1.325±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2.5
  • 重原子数:
    13
  • 可旋转键数:
    1
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.333
  • 拓扑面积:
    12.5
  • 氢给体数:
    0
  • 氢受体数:
    4

SDS

SDS:7330f72097025d5747e1f038ab3bebff
查看

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
    2-[ 4-(三氟甲基)苯基]环氧氯丙烷 2-(4-trifluoromethylphenyl)oxirane 111991-14-1 C9H7F3O 188.149
    —— (R)-1-(4-(trifluoromethyl)phenyl)ethane-1,2-diol 255733-11-0 C9H9F3O2 206.164
    —— 2-chloro-1-(4-(trifluoromethyl)phenyl)ethan-1-ol 1070686-96-2 C9H8ClF3O 224.61
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量
    —— (D)-para-trifluoromethylstyrene oxide 1251070-17-3 C9H7F3O 189.141

反应信息

  • 作为反应物:
    描述:
    (R)-2-(4-(三氟甲基)苯基)环氧乙烷四甲基乙二胺仲丁基锂氘代甲醇-d 作用下, 以 正己烷环己烷 为溶剂, 以95%的产率得到
    参考文献:
    名称:
    溶剂和TMEDA对手性锂化芳氧杂环戊烷构型稳定性的影响
    摘要:
    使用己烷/ N,N,N',N'-四甲基乙二胺(TMEDA)极大地阻碍了那些锂化的苯乙烯氧化物(三氟甲基,氯和苯硫基取代的)的消旋作用,这些氧化物已证明在反应时间范围内在THF中呈构型不稳定。针对在THF,THF / TMEDA和己烷/ TMEDA中进行的反应计算得出的转化障碍和活化参数(Eyring方程),建议针对每种情况进行特定对映异构化机理的干预。还根据收集的动力学数据质疑和讨论了TMEDA在配位和非配位溶剂中的作用,还提出了己烷/ TMEDA中去质子化的模型。在建立不重要的工业上重要的抗真菌剂的不对称合成中,我们的研究结果具有明显的合成优势。
    DOI:
    10.1002/chem.201100351
  • 作为产物:
    描述:
    对三氟甲基苯乙烯 在 chromium binaphthyl Schiff base complex supported on MCM-41 亚碘酰苯 作用下, 以 甲苯 为溶剂, 生成 (R)-2-(4-(三氟甲基)苯基)环氧乙烷
    参考文献:
    名称:
    Asymmetric epoxidation of alkenes catalysed by chromium binaphthyl Schiff base complex supported on MCM-41
    摘要:
    固定在改性 MCM-41 上的铬(III)二萘基希夫碱配合物是一种有效的催化剂,可用于未官能化烯烃的不对称环氧化反应,其ee值明显高于游离配合物。
    DOI:
    10.1039/a905313a
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文献信息

  • Engineered P450pyr monooxygenase for asymmetric epoxidation of alkenes with unique and high enantioselectivity
    作者:Aitao Li、Ji Liu、Son Q. Pham、Zhi Li
    DOI:10.1039/c3cc46675b
    日期:——
    A triple mutant of P450pyr monooxygenase (P450pyrTM) catalysed the epoxidation of several para-substituted styrenes as the first enzyme showing high (R)-enantioselectivity and high conversion, demonstrated a broad substrate range, and showed high enantioselectivity for the epoxidation of an unconjugated 1,1-disubstituted alkene, 2-methyl-3-phenyl-1-propene, and a cyclic alkene, N-phenoxycarbonyl-1,2,5,6-tetrahydropyridine, respectively.
    P450pyr单加氧酶的三重突变体(P450pyrTM)作为首个展现出高(R)对映选择性和高转化率的酶,催化了几种对位取代苯乙烯的环氧化反应,其底物范围广泛,并对非共轭的1,1-二取代烯烃——2-甲基-3-苯基-1-丙烯,以及环烯烃——N-苯氧羰基-1,2,5,6-四氢吡啶的环氧化反应表现出高对映选择性。
  • Stereo- and Enantioselective Alkene Epoxidations: A Comparative Study of D4- and D2-Symmetric Homochiral trans-Dioxoruthenium(VI) Porphyrins
    作者:Rui Zhang、Wing-Yiu Yu、Hong-Zhe Sun、Wei-Sheng Liu、Chi-Ming Che
    DOI:10.1002/1521-3765(20020603)8:11<2495::aid-chem2495>3.0.co;2-g
    日期:2002.6.3
    dioxoruthenium(VI) porphyrins proceeds through the rate-limiting formation of a benzylic radical intermediate; the observed enantioselectivity (eeobs) depends on both the facial selectivity of the first C-O bond formation step and the diastereoselectivity of the subsequent epoxide ring closure. To account for the observed facial selection, "side-on" and "top-on" approach transition state models are examined
    D4-和D2-对称的同手性反式二氧杂钌(VI)卟啉,[RuVI(D4-Por *)O2](1)和[RuVI(D2-Por *)O2](2a)的化学计量对映选择性烯烃环氧化的机理),在存在吡唑(Hpz)的条件下,通过UV / Vis分光光度法对有机产物进行了分析。苯乙烯氧化的对映选择性比取代基电子效应更容易受到空间效应的影响。通过使用1作为氧化剂,对3-取代的和顺式-二取代的苯乙烯进行环氧化,可实现高达72%的ee,而在与2-取代和反-二取代的苯乙烯的反应中,对映选择性仅为20-40%。络合物2a在高达88%ee的条件下将2-取代的苯乙烯氧化为环氧化物。它与反式烯烃的反应对映选择性更高(67%ee),而与顺式烯烃的反应(40%ee)更高。根据二维NOESY NMR研究,发现2a在苯中的构型比在二氯甲烷中的构型更开放,这解释了观察到的其与烯烃反应的溶剂依赖性对映选择性。手性二氧杂钌(VI)卟啉
  • Mechanistic Investigation of the Oxidation of Aromatic Alkenes by Monooxoruthenium(IV). Asymmetric Alkene Epoxidation by Chiral Monooxoruthenium(IV) Complexes
    作者:Wai-Hong Fung、Wing-Yiu Yu、Chi-Ming Che
    DOI:10.1021/jo980755c
    日期:1998.10.1
    'The oxoruthenium(IV) complexes [Ru-IV(terpy)(6,6'-Cl-2-bpy)O](ClO4)(2) (1a; terpy = 2,2':6',2 "-terpyridine; 6,6'-Cl-2-bpy = 6,6'-dichloro-2,2'-bipyridine), [Ru-IV(terpy)(tmeda)O](ClO4)(2) (1b; tmeda = N,N,N',N'-tetramethylethylenediamine), [Ru-IV(Cn)(bpy)O](ClO4)(2) (1c; Cn = 1,4,7-trimethyl-1,4,7-triazacyclononane), and [Ru-IV(PPz*)(bpy)O](ClO4)(2) (1d; PPz* = 2,6-bis[(4S,7R)-7,8,8-trimethyl-4,5,6,7-tetrahydro-4,7-methanoindazol-2-yl]pyridine) are effective for the epoxidation of aromatic alkenes in acetonitrile at ambient conditions. Their reactions with cis-alkenes such as cis-beta-methylstyrene and cis-beta-deuteriostyrene afford epoxides nonstereospecifically. The observation of the inverse secondary kinetic isotope effect for the beta-d(2)-styrene oxidations [k(H)/k(D) = 0.87 (1b), 0.86 (1d)], but not for alpha-deuteriostyrene (k(H)/k(D) = 0.98 for 1b and 1d), indicates that C-O bond formation is more advanced at the beta-carbon atom than at the alpha carbon, i.e., a stepwise mechanism. The second-order rate constants (k(2)) for the styrene oxidations are weakly dependent on the E degrees(Ru-IV/III) values of the oxoruthenium(IV) complexes, and both electron-withdrawing and -donating para substituents mildly accelerate the oxidation reaction of styrene. These findings discount strongly the intermediaries of an alkene-derived cation radical and a carbocation. A linear free-energy relationship between the second-order rate constants for the para-substituted styrene oxidations and the total substituent effect (TE) parameters has been established: rho(TE .) = +0.43 (R = 0.99) for 1b, +0.50 (R = 0.98) for 1c, and +0.37 (R = 0.99) for 1d (Wu, Y.-D.; Wong, C.-L.; Chan, K. W.; Ji, G.-Z.; Jiang, X.-K. J. Org. Chem. 1996, 61, 746). This suggests that the oxidation of aromatic alkenes by oxoruthenium(IV) complexes should proceed via the rate-limiting formation of a benzylic radical intermediate. Oxidation of styrene and cis- and trans-beta-methylstyrenes by the chiral oxoruthenium-(IV) complex Id attains moderate enantioselectivities, in which the production of cis-epoxide is more enantioselective than the trans counterpart. The ligand dissymmetry of PPz* together with the bipyridine ligand create a "chiral pocket" around the Ru-IV=O moiety, leading to enantiofacial discrimination through nonbonding interaction. Because the acyclic benzylic radical intermediate would undergo cis-trans isomerization before the second C-O bond formation, the overall product enantioselectivity (% ee(obs)) cannot be determined exclusively by facial selectivity (ee(facial)) of the first irreversible C-O bond formation step. The extent of the isomerization, measured by the cis-trans-epoxide selectivity or diastereoselectivity of epoxide ring closure, is an important element in controlling the enantiomeric excess of the epoxides.
    四氧化钌(IV)配合物 [Ru-IV(terpy)(6,6'-Cl-2-bpy)O](ClO4)(2)(1a;terpy = 2,2':6',2"-三联吡啶;6,6'-Cl-2-bpy = 6,6'-二氯-2,2'-联吡啶)、[Ru-IV(terpy)(tmeda)O](ClO4)(2)(1b;tmeda = N,N,N',N'-四甲基乙二胺)、[Ru-IV(Cn)(bpy)O](ClO4)(2)(1c;Cn = 1,4,7-三甲基-1,4,7-三氮杂环壬烷)和 [Ru-IV(PPz*)(bpy)O](ClO4)(2)(1d;PPz* = 2,6-二[(4S,7R)-7,8,8-三甲基-4,5,6,7-四氢-4,7-甲基吲哚唑-2-基]吡啶)在乙腈中于室温条件下有效实现芳香烯的环氧化。它们与顺式烯烃(如顺式-β-甲基苯乙烯和顺式-β-去氘苯乙烯)反应,非立体选择性地生成环氧化物。观察到β-双氘苯乙烯氧化中的逆二级动力学同位素效应(k(H)/k(D) = 0.87(1b)、0.86(1d)),但未在α-对位去氘苯乙烯中观察到(k(H)/k(D) = 0.98,1b和1d),表明C-O键在β-碳的形成比α-碳更进一步,即逐步机制。苯乙烯氧化的二阶速率常数(k(2))对四氧化钌(IV)配合物的E°(Ru-IV/III)值弱依赖,且电子吸热性和 donating 气对位取代基均轻度加速苯乙烯的氧化反应。这些发现强烈排除了来源于烯烃的阳离子自由基和碳阳离子的中间体。已建立一个线性自由能关系,涉及对位取代苯乙烯氧化的二阶速率常数与总取代基效应(TE)参数:ρ(TE .) = +0.43(R = 0.99)用于1b,+0.50(R = 0.98)用于1c,+0.37(R = 0.99)用于1d(Wu, Y.-D.; Wong, C.-L.; Chan, K. W.; Ji, G.-Z.; Jiang, X.-K. J. Org. Chem. 1996, 61, 746)。这表明,芳香烯通过四氧化钌(IV)配合物的氧化反应应经由苄自由基中间体的速率决定形成步骤。手性四氧化钌(IV)配合物1d对苯乙烯和顺式、反式β-甲基苯乙烯的环氧化实现了中等的对映选择性,其中顺式环氧化物的对映选择性高于反式产物。PPz*配体的不对称性以及联吡啶配体共同在Ru-IV=O基团周围形成一个“手性口袋”,通过非键合相互作用实现对映面分辨。由于无环苄自由基中间体在第二个C-O键形成之前会经历顺式-反式异构化,因此最终产物的对映体选择性(% ee(obs))不能仅由第一个不可逆C-O键形成步骤的面选择性(ee(facial))决定。通过顺式-反式环氧化物选择性或反式-反式环氧化物环闭合的对映选择性测量的异构化程度是控制环氧化物中对映体过量的重要因素。
  • [EN] PYRROLIDINONES AND A PROCESS TO PREPARE THEM<br/>[FR] PYRROLIDINONES ET PROCÉDÉ POUR LES PRÉPARER
    申请人:FMC CORP
    公开号:WO2018175226A1
    公开(公告)日:2018-09-27
    This application is directed to a compound of Formula II Also disclosed is a process for preparing a compound of Formula II comprising using the compounds of Formulae IV and V Also disclosed is a method for preparing a compound of Formula I comprising contacting a compound of Formula II with a compound of a compound of Formula VI wherein A1, A2 A3, R1, R2, R3a, R3b, R4, B1, B2 and B3, are as defined in the disclosure.
    这项申请涉及一种II式化合物。还披露了一种制备II式化合物的方法,包括使用IV式和V式化合物。还披露了一种制备I式化合物的方法,包括将II式化合物与VI式化合物接触,其中A1、A2、A3、R1、R2、R3a、R3b、R4、B1、B2和B3的定义如披露中所述。
  • Enantioselective water-soluble iron–porphyrin-catalyzed epoxidation with aqueous hydrogen peroxide and hydroxylation with iodobenzene diacetate
    作者:Paul Le Maux、Hassan F. Srour、Gérard Simonneaux
    DOI:10.1016/j.tet.2012.05.014
    日期:2012.7
    The asymmetric epoxidation of styrene derivatives by H2O2 (or UHP) to give optically active epoxides (ee up to 81%) and hydroxylation of alkanes to give optically active secondary alcohols (ee up to 78%) were carried out in methanol and water using chiral water-soluble iron porphyrins as catalysts.
    H 2 O 2(或UHP)对苯乙烯衍生物进行不对称环氧化,得到旋光性环氧化物(ee高达81%),烷烃的羟基化反应得到旋光性仲醇(ee高达78%)在甲醇中进行。使用手性水溶性铁卟啉作为催化剂的水。
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