trans-2-(4-nitrophenyl)-3-phenyloxirane

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: trans-2-(4-nitrophenyl)-3-phenyloxirane
• 英文别名: 2-(4-nitrophenyl)-3-phenyloxirane；(2R,3R)-2-(4-nitrophenyl)-3-phenyloxirane
• 化学式: C₁₄H₁₁NO₃
• 分子量: 241.246
• InChiKey: YUZKNYLREGXARL-ZIAGYGMSSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  58.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  trans-2-(4-nitrophenyl)-3-phenyloxirane 在 palladium on activated charcoal 盐酸 、 水 、 氢气 作用下， 以 溶剂黄146 为溶剂， 45.0 ℃ 、344.73 kPa 条件下， 反应 18.0h， 生成 (1R,2R)-1-(4-aminophenyl)-2-phenylethane-1,2-diol
  参考文献：
  名称：

  Azide and Solvent Trapping of Electrophilic Intermediates Generated during the Hydrolysis of N-(Sulfonatooxy)-N-acetyl-4-aminostilbene

  摘要：

  Hydrolysis of the carcinogenic title compound 1a in 5 vol % CH3CN-H2O, mu = 0.5, 20 degrees C at pH 7.2 in 0.02 M phosphate buffer, yields the rearranged material 3-(sulfonatooxy)-N-acetyl-4-aminostilbene (4) (23 +/- 1%), threo-1,2-dihydroxy-1-phenyl-2-(4-acetamidophenyl)ethane (5) (57 +/- 2%), and erythro-1,2-dihydroxy-1-phenyl-2-(4-acetamidophenyl)ethane (6) (20 +/- 2%) in the absence of added nucleophiles. Addition of N-3(-) has no effect on the rate constant for decomposition of 1a (ca. 1.9 x 10(-2) s(-1)), but generates a number of adducts that result from trapping of three different electrophilic intermediates. The ortho-N-3 adduct 3-azido-N-acetyl-4-aminostilbene (7) is produced from trapping of the nitrenium ion 2. A fit of the product yield data as a function of [N-3(-)] provides the ratio k(az)/k(s) of 280 +/- 10 M-1 for competitive trapping of 2 by N-3(-) and H2O. The nucleophilic aromatic substitution product 7 is a minor reaction product. The predominant site of attack by N-3(-) On 2 (ca. 85%) is at the beta-vinyl carbon to produce the quinone imide methide 3b. Attack of H2O at the same site produces the analogous intermediate 3a. Both of these electrophilic species are competitively trapped by N-3(-) and H2O with trapping ratios k(az)'/k(s)' for 3b of 107 +/- 8 M-1 and k(az)"/ k(s)" for 3a of 39 +/- 2 M-1. The reactivity patterns of 2 are unlike those of other N-arylnitrenium ions that undergo predominant nucleophilic aromatic substitution with nucleophiles such as N-3(-). The quinone imide methides that are produced by nucleophilic attack on the beta-carbon of 2 react selectively enough with nonsolvent nucleophiles that they may be physiologically relevant.

  DOI：

  10.1021/jo980500z
• 作为产物：
  描述：

  N-亞硝乙醯胺苯 在 bis(dibenzylideneacetone)-palladium⁽⁰⁾ 过氧化氢苯甲酰 作用下， 以 氯仿 、 乙腈 为溶剂， 生成 trans-2-(4-nitrophenyl)-3-phenyloxirane
  参考文献：
  名称：

  Ikenaga, Kazutoshi; Kikukawa, Kiyoshi; Matsuda, Tsutomu, Journal of the Chemical Society. Perkin transactions I, 1986, p. 1959 - 1964

  摘要：

  DOI：

文献信息

• A New Protocol for the In Situ Generation of Aromatic, Heteroaromatic, and Unsaturated Diazo Compounds and Its Application in Catalytic and Asymmetric Epoxidation of Carbonyl Compounds. Extensive Studies To Map Out Scope and Limitations, and Rationalization of Diastereo- and Enantioselectivities
  作者：Varinder K. Aggarwal、Emma Alonso、Imhyuck Bae、George Hynd、Kevin M. Lydon、Matthew J. Palmer、Mamta Patel、Marina Porcelloni、Jeffery Richardson、Rachel A. Stenson、John R. Studley、Jean-Luc Vasse、Caroline L. Winn

  DOI：10.1021/ja034606+

  日期：2003.9.1

  a general process for the in situ generation of diazo compounds from tosylhydrazone sodium salts has been established and applied in sulfur-ylide mediated epoxidation reactions. The chiral, camphor-derived, [2.2.1] bicyclic sulfide 7 was employed (at 5-20 mol % loading) to render the above processes asymmetric with a range of carbonyl compounds and tosylhydrazone sodium salts. Benzaldehyde tosylhydrazone

  已经制备了多种衍生自苯甲醛的金属化甲苯磺酰腙盐，并在四氢噻吩 (THT) (20 mol %) 和 Rh(2)(OAc)(4) (1 mol %) 存在下与苯甲醛反应，得到二氧化二苯乙烯. 在所测试的锂盐、钠盐和钾盐中，发现钠盐的产率和选择性最高。该研究扩展到各种芳香族、杂芳香族、脂肪族、α、β-不饱和和乙炔醛以及酮。总的来说，观察到具有中等至非常高的非对映选择性的环氧化物的高产率。还使用相同的方案在与苯甲醛的反应中检查了衍生自芳香族、杂芳香族和 α,β-不饱和醛的范围广泛的甲苯磺酰腙盐，再次，在大多数情况下观察到良好的产率和高的非对映选择性。因此，已经建立了从甲苯磺酰腙钠盐原位生成重氮化合物的一般方法，并将其应用于硫-叶立德介导的环氧化反应。使用手性、樟脑衍生的 [2.2.1] 双环硫化物 7（以 5-20 mol% 负载量）使上述过程与一系列羰基化合物和甲苯磺酰腙钠盐不对称。苯甲醛甲苯磺酰腙钠盐提供
• Catalytic Asymmetric Synthesis of Epoxides from Aldehydes Using Sulfur Ylides with In Situ Generation of Diazocompounds
  作者：Varinder K. Aggarwal、Emma Alonso、George Hynd、Kevin M. Lydon、Matthew J. Palmer、Marina Porcelloni、John R. Studley

  DOI：10.1002/1521-3773(20010417)40:8<1430::aid-anie1430>3.0.co;2-w

  日期：2001.4.17

  absolute stereochemistry has been achieved by generating the reactive intermediate (the diazo compound) in situ from tosylhydrazone salts (see scheme, PTC=phase-transfer catalyst, Ts=toluene-4-sulfonyl). High yields (58-82 %), high d.r. (88:12-98:2), and high ee values (87-94 %) have been obtained using a new class of stable chiral sulfides at low catalyst loading (5 mol %) and [Rh2 (OAc)4 ] (0.5 mol %).

  通过从甲苯磺酰salts盐原位生成反应性中间体（重氮化合物），已实现了控制相对和绝对立体化学的实用，通用且收敛的环氧化物途径（参见方案，PTC =相转移催化剂，Ts =甲苯） -4-磺酰基）。使用新型的稳定的手性硫化物，在低催化剂负载量（5 mol％）下，已获得高产率（58-82％），高dr（88：12-98：2）和高ee值（87-94％） ）和[Rh 2（OAc）4 ]（0.5摩尔％）。
• Process for the preparation of an oxirane, azirdine or cyclopropane
  申请人：Zeneca Limited

  公开号：US05703246A1

  公开（公告）日：1997-12-30

  A process for the preparation of an oxirane, aziridine or cyclopropane of formula (I) wherein, X is oxygen, NR.sup.4 or CHR.sup.5 ; R.sup.1 is hydrogen, alkyl, aryl, heteroaromatic, heterocyclic or cycloalkyl; R.sup.2 is hydrogen, alkyl, aryl, heteroaromatic, CO.sub.2 R.sup.8, CHR.sup.14 NHR.sup.13, heterocyclic or cycloalkyl; or R.sup.1 and R.sup.2 join together to form a cycloalkyl ring; R.sup.3 is hydrogen, alkyl, aryl, heteroaromatic, CO.sub.2 R.sup.8, R.sup.8.sub.3 Sn, CONR.sup.8 R.sup.9 or trimethylsilyl; R.sup.4 and R.sup.5 are, independently, alkyl, cycloalkyl, aryl, heteroaromatic, SO.sub.2 R.sup.8, SO.sub.3 R.sup.8, COR.sup.8, CO.sub.2 R.sup.8, CONR.sup.8 R.sup.9 or CN, or R.sup.4 can also be P(O)(aryl).sub.2 ; R.sup.8 and R.sup.9 are independently alkyl, aryl or arylalkyl; R.sup.13 and R.sup.14 are independently hydrogen, alkyl or aryl; the process comprising reacting a mixture of a compound of formula (II), wherein R.sup.1, R.sup.2 and X are as defined above, and a sulphide of formula SR.sup.6 R.sup.7, wherein R.sup.6 and R.sup.7 are independently alkyl, aryl or heteroaomatic, or R.sup.6 and R.sup.7 join together to form a cycloalkyl ring which optionally includes an additional heteroatom, with either (i) a metallocarbon obtainable by reacting an alkylmetal with a methane derivative of formula CHR.sup.3 X'X", wherein R.sup.3 is as defined above, and X' and X" are independently, a leaving group, or (ii) a metallocarbon obtainable by reacting a compound of formula (III), (wherein R.sup.3 may not be hydrogen) with a suitable organometallic or inorganic reagent.

  一种制备式(I)的环氧烷、氮杂环丙烷或环丙烷的方法，其中，X为氧、NR^4或CHR^5；R^1为氢、烷基、芳基、杂环芳基、杂环烷基或环烷基；R^2为氢、烷基、芳基、杂环芳基、CO_2R^8、CHR^14NHR^13、杂环烷基或环烷基；或R^1和R^2结合形成环烷基环；R^3为氢、烷基、芳基、杂环芳基、CO_2R^8、R^83Sn、CONR^8R^9或三甲基硅基；R^4和R^5分别为烷基、环烷基、芳基、杂环芳基、SO_2R^8、SO_3R^8、COR^8、CO_2R^8、CONR^8R^9或CN，或R^4也可以是P(O)(芳基)_2；R^8和R^9独立地为烷基、芳基或芳基烷基；R^13和R^14独立地为氢、烷基或芳基；该方法包括将式(II)化合物的混合物与式SR^6R^7的硫化物反应，其中R^1、R^2和X如上所定义，R^6和R^7独立地为烷基、芳基或杂环芳基，或R^6和R^7结合形成环烷基环，该环可能包括额外的杂原子，与(i)通过将烷基金属与式CHR^3X'X"的甲烷衍生物反应获得的金属碳或(ii)通过将式(III)化合物（其中R^3可能不是氢）与适当的有机金属或无机试剂反应获得的金属碳反应。
• Experimental Evidence for Multiple Oxidation Pathways in the (salen)Mn-Catalyzed Epoxidation of Alkenes
  作者：Christian Linde、Nordine Koliaï、Per-Ola Norrby、Björn Åkermark

  DOI：10.1002/1521-3765(20020603)8:11<2568::aid-chem2568>3.0.co;2-z

  日期：2002.6.3

  the catalytic epoxidation of para-substituted cis stilbenes 2a-i were investigated by using (R,R)-[N,N'-bis(3,5-di-tBu-salicylidene)-1,2-cyclohexanediamine]manganese(III) chloride 1 in benzene as the catalyst with iodosobenzene as the terminal oxidant. A Hammett study of the selectivity results reveals a stronger electrophilic character than previously assumed in the (salen)Mn-catalyzed reaction. In

  使用（R，R）-[N，N'-bis（3,5-di-tBu-Salicylidene）-1研究了底物电子对对位取代的顺式斯蒂尔苯酯2a-i催化环氧化反应选择性的影响1,2-环己烷二胺]氯化锰（III）1在苯中作为催化剂，碘代苯作为末端氧化剂。Hammett对选择性结果的研究表明，其亲电特性比以前在（salen）Mn催化的反应中所假定的要强。通常，通过使用Hammett sigma +值获得与实验值的最佳相关性，对于顺式环氧形成速率，rho = -1.37；对于逐步反应的逐步过程速率，rho = -0.43。反产品。该反应涉及两个单独的途径，这也由中间体在甲氧基取代的底物的反式环氧化物的竞争性竞争中表明。对于4-甲氧基-4'-亚硝基二苯乙烯而言，导致顺式环氧化物的协同途径中的异步性是显而易见的，由于电子效应，其完全产生具有75％ee的顺式环氧化物。
• Regio- and Stereoselective Ring Opening of 2,3-Diaryl Oxiranes by LiBr/Amberlyst 15:  A New Stereocontrolled Access to 1,2-Diaryl-2-bromo Alcohols
  作者：Arlette Solladié-Cavallo、Paolo Lupattelli、Carlo Bonini

  DOI：10.1021/jo048045w

  日期：2005.3.1

  symmetrical trans-stilbene oxide, the syn- versus anti-bromohydrins ratio ranged between 88/12 and 30/70, by varying the reaction temperature from 20 to −30 °C. In the case of nonsymmetrical para-substituted trans-2,3-diaryloxiranes, the regioselectivity is determined by electronic effects. If one phenyl bears a strong electron-withdrawing group (as NO2 or CF3), the nucleophilic attack is totally on the

  对称和不对称的反式-2,3-二芳基环氧乙烷均通过LiBr / Amberlyst 15系统在区域和立体上选择性打开。在对称的反式-二苯乙烯-环氧化合物的情况下，通过将反应温度从20更改为-30°C ，顺式-反式-溴代醇的比例在88/12至30/70之间。在非对称的对位取代的反式-2，3-二芳基环氧乙烷的情况下，区域选择性由电子效应确定。如果一个苯基带有强吸电子基团（如NO 2或CF 3），相对于取代的苯环，亲核攻击完全在β-碳上。在一个带有一个强电子释放基团（OCH 3）的苯基上，区域选择性相反。在质子化的环氧化物结构上进行的DFT / B3LYP / 6-31G *水平的从头算计算支持形成阳离子无环中间体。该方法在邻-甲氧基和邻-硝基2，3-二芳基氧杂环戊烷上的应用通过分别在α-碳或β-碳上的区域和立体选择性开环以优异的产率提供了顺-溴代醇。