(R)-1-(4-chlorophenyl)-4-nitro-3-phenylbutan-1-one | 1094497-47-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 直链 1,3-二芳基丙烷
• 英文名称: (R)-1-(4-chlorophenyl)-4-nitro-3-phenylbutan-1-one
• 英文别名: (3R)-1-(4-chlorophenyl)-4-nitro-3-phenylbutan-1-one
• CAS: 1094497-47-8
• 化学式: C₁₆H₁₄ClNO₃
• 分子量: 303.745
• InChiKey: LQZRGJIUGWYGJI-AWEZNQCLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  21
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  62.9
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (R)-1-(4-chlorophenyl)-4-nitro-3-phenylbutan-1-one 、 β-硝基苯乙烯 在 C₂₉H₂₈F₆N₄OS 作用下， 以 甲苯 为溶剂， 反应 64.0h， 以61%的产率得到(1R,2R,3S,4S,5R)-1-(4-chlorophenyl)-2,4-dinitro-3,5-diphenylcyclohexanol
  参考文献：
  名称：

  Double Diastereocontrol in Bifunctional Thiourea Organocatalysis: Iterative Michael–Michael–Henry Sequence Regulated by the Configuration of Chiral Catalysts

  摘要：

  The importance and reactivity consequences of the double diastereocontrol in noncovalent bifunctional organocatalysis were studied. The results suggest that the bifunctional thioureas can have synthetic limitations in multicomponent domino or autotandem catalysis. Nevertheless, we provided a means to exploit this behavior and used the configuration of the chiral catalyst as a control element in organo-sequential reactions.

  DOI：

  10.1021/ol201559j
• 作为产物：
  描述：

  硝基甲烷 、 4'-chlorochalcone 在 C₄₃H₆₄N₄O₄ 、 scandium tris(trifluoromethanesulfonate) 、 4-二甲氨基吡啶 作用下， 反应 48.5h， 以99%的产率得到(R)-1-(4-chlorophenyl)-4-nitro-3-phenylbutan-1-one
  参考文献：
  名称：

  N，N'-二氧化物-Scan（III）配合物催化硝基甲烷与烯酮的不对称共轭加成反应

  摘要：

  以“ Sc”形式存在：将查尔酮和“肉桂酮”衍生物不对称共轭加成到硝基甲烷中，是通过使用简单有效的scan（III）-N，N'-二氧化物络合物作为催化剂实现的（参见方案） ）。在2-5 mol％的催化剂负载下，形成的相应产物的收率（高达99％）和对映选择性（高达ee > 99％  ）都非常好。

  DOI：

  10.1002/chem.201000688

文献信息

• Highly Enantioselective Michael Addition of Nitroalkanes to Chalcones Using Chiral Squaramides as Hydrogen Bonding Organocatalysts
  作者：Wen Yang、Da-Ming Du

  DOI：10.1021/ol102294g

  日期：2010.12.3

  squaramide-based organocatalysts were facilely synthesized and applied as hydrogen bonding organocatalysts in the enantioselective Michael addition of nitroalkanes to chalcones. These organocatalysts promoted the Michael addition with low catalyst loading under high temperature (80 °C), affording the desired R or S enantiomers of the products flexibly in high yields with excellent enantioselectivities (93−96%

  容易地合成了一系列基于方酰胺的有机催化剂，并将其用作氢键键合的有机催化剂，用于将硝基烷烃向查尔酮进行对映选择性迈克尔加成反应。这些有机催化剂促进迈克尔加成与高温下低的催化剂负载量（80℃），得到所期望的- [R或小号以高收率和优异的对映选择性（93-96％ee）的由有机催化剂的合适的选择灵活的产品的对映体。
• Enantioselective Conjugate Addition of Nitro Compounds to α,β-Unsaturated Ketones: An Experimental and Computational Study
  作者：Rubén Manzano、José M. Andrés、Rosana Álvarez、María D. Muruzábal、Ángel R. de Lera、Rafael Pedrosa

  DOI：10.1002/chem.201100241

  日期：2011.5.16

  thioureas derived from easily available diamines, prepared from α‐amino acids, have been tested as catalysts in the enantioselective Michael additions of nitroalkanes to α,β‐unsaturated ketones. The best results are obtained with the bifunctional catalyst prepared from L‐valine. This thiourea promotes the reaction with high enantioselectivities and chemical yields for aryl/vinyl ketones, but the enantiomeric

  在由α-氨基酸制得的易得的二胺中衍生出一系列手性硫脲，已对硝基烷烃向α，β-不饱和酮的对映选择性迈克尔加成反应中的催化剂进行了测试。用L-缬氨酸制备的双功能催化剂可获得最佳结果。该硫脲对芳基/乙烯基酮具有高的对映选择性和化学收率，促进了反应，但是烷基/乙烯基衍生物的对映体比例非常适中。取代的硝基甲烷的加入导致相应的加合物具有优异的对映选择性，但非对映选择性非常差。查尔酮与[D 3硝基甲烷，表明最终加成产物在反应条件下发生差向异构。差向异构体解释了在形成具有两个相邻的叔立体中心的加合物时观察到的低非对映选择性。在B3LYP / 3-21G *的水平上，已经进行了对应于硝基烷和α，β-不饱和酮的两种替代活化方式的过渡结构的密度泛函研究。该计算与反应模型一致，该模型涉及将硫脲活化的硝酸酯迈克尔加成到有机催化剂的质子化胺活化的酮上。通过计算预测的对映选择性与对芳基和烷基取代的α，β-不饱和酮的实验值一致。
• Asymmetric Michael Addition of Aromatic Ketones to Nitroolefins Catalyzed by Simple Chiral Bifunctional Primary Amine-Thioureas
  作者：Liangliang Wang、Xiaoying Xu、Jun Huang、Lin Peng、Qingchun Huang、Lixin Wang

  DOI：10.2174/157017810791514652

  日期：2010.7.1

  Simple chiral primary amine-thiourea catalysts derived from chiral 1,2-diphenylethylenediamine were found to catalyze direct Michael addition of aromatic ketones to nitroolefins with good enantioselectives (up to 86% ee) and excellent yields (up to 97%) for a broad range of substrates and successfully used in the preparation of (R)-Balcofen.

  简单的手性一级胺-硫脲催化剂来源于手性1,2-二苯乙烯二胺，已被发现能够以良好的手性选择性（最高可达86% ee）和优异的产率（最高可达97%）催化芳香酮与硝基烯烃的直接迈克尔加成，适用于广泛的底物，并成功用于(R)-Balcofen的制备。
• Enantioselective Michael Addition of Aromatic Ketones to Nitroolefins Catalyzed by Bifunctional Thioureas and Mechanistic Insight
  作者：Bai-Lin Li、Yi-Feng Wang、Shu-Ping Luo、Ai-Guo Zhong、Zhao-Bo Li、Xiao-Hua Du、Dan-Qian Xu

  DOI：10.1002/ejoc.200900932

  日期：2010.2

  A highly enantioselective Michael reaction of aromatic ketones with nitroolefins was accomplished in the presence of a chiral bifunctional primary amine―thiourea catalyst and 4-nitrobenzoic acid as the co-catalyst; the corresponding adducts were obtained in excellent enantioselectivities (up to 99 % ee) and yields (up to 98 %). The catalytic mechanism of the Michael reaction was confirmed through the

  在手性双官能伯胺-硫脲催化剂和4-硝基苯甲酸作为助催化剂存在下，芳香酮与硝基烯烃的高度对映选择性迈克尔反应；以优异的对映选择性（高达 99 % ee）和产率（高达 98 %）获得了相应的加合物。迈克尔反应的催化机理通过对反应中间体的 ESI-MS 检测和硫脲和硝基烯烃之间氢键的 1 H NMR 检测得到证实。DFT 计算表明，硫脲的手性部分显着影响了加合物的产率和对映选择性，这与观察到的实验结果相对应。
• Enantioselective addition of aryl ketones and acetone to nitroalkenes organocatalyzed by carbamate-monoprotected cyclohexa-1,2-diamines
  作者：Jesús Flores-Ferrándiz、Alexander Stiven、Lia Sotorríos、Enrique Gómez-Bengoa、Rafael Chinchilla

  DOI：10.1016/j.tetasy.2015.07.011

  日期：2015.9

  Enantiomerically pure carbamate-monoprotected trans-cyclohexane-1,2-diamines are used as chiral organocatalysts for the addition of aryl ketones and acetone to nitroalkenes to give enantioenriched beta-substituted gamma-nitroketones. The reaction was performed in the presence of 3,4-dimethoxybenzoic acid as an additive, in chloroform as the solvent at room temperature, achieving enantioselectivities up to 96%. Theoretical calculations are used to justify the observed sense of the stereoinduction. (C) 2015 Elsevier Ltd. All rights reserved.