2-[hydroxy-(4-nitrophenyl)methyl]cyclopentanone

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-[hydroxy-(4-nitrophenyl)methyl]cyclopentanone
• 英文别名: (R)-2-((R)-hydroxy(3-nitrophenyl)methyl)cyclopentanone；(2R)-2-((R)-hydroxy(3-nitrophenyl)methyl)cyclopentan-1-one；(2R,1'R)-2-[hydroxy-(3-nitrophenyl)-methyl]-cyclopentanone；2-[hydroxy(3-nitrophenyl)methyl]cyclopentanone；syn-(R)-2-((R)-hydroxy(3-nitrophenyl)methyl)cyclopentan-1-one；2-(hydroxyl-(3-nitrophenyl)methyl)-cyclopentan-1-one；2-[hydroxy(3-nitrophenyl)methyl]cyclopentan-1-one；(2R)-2-[(R)-hydroxy-(3-nitrophenyl)methyl]cyclopentan-1-one
• 化学式: C₁₂H₁₃NO₄
• 分子量: 235.24
• InChiKey: NARLCEZIFIKPSE-JQWIXIFHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  17
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  83.1
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  2-[hydroxy-(4-nitrophenyl)methyl]cyclopentanone 在 NH₂-Val-(D-Pro)-Gly-Leu-OH 、 苯甲酸 作用下， 以 乙醇 为溶剂， 反应 300.0h， 以10%的产率得到2-[hydroxy-(4-nitrophenyl)methyl]cyclopentanone
  参考文献：
  名称：

  Highly enantioselective biomimetic intramolecular dehydration: kinetic resolution of β-hydroxy ketones catalyzed by β-turn tetrapeptides

  摘要：

  Racemic beta-hydroxy ketones were kinetically resoluted into the enantiopure isomers and (E)-alpha,beta-unsaturated ketones using catalytic asymmetric intramolecular dehydration for the first time. Synthetic tetrapeptides were used to imitate fatty acid dehydratases to efficiently discriminate racemic beta-hydroxy ketones, enantioselectively catalyze the intramolecular dehydration, and result in highly enantioenriched beta-hydroxy and (E)-alpha,beta-unsaturated ketones in the environmentally benign process. Mechanistically, the high discrimination of the racemic substrates and successive enantioselective dehydration are highly dependent on the cooperative catalysis of the NH2 and COOH groups of the peptide. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2013.03.087

文献信息

• Highly efficient primary amine organocatalysts for the direct asymmetric aldol reaction in brine
  作者：Xiao Ma、Chao-Shan Da、Lei Yi、Ya-Ning Jia、Qi-Peng Guo、Li-Ping Che、Feng-Chun Wu、Jun-Rui Wang、Wei-Ping Li

  DOI：10.1016/j.tetasy.2009.05.032

  日期：2009.7

  amine organocatalysts, derived from natural primary amino acids, in combination with 2,4-dinitrophenol (DNP) have proven to be efficient in the presence of brine without further addition of organic solvents. The system formed by 1f and DNP was the most efficient one; it can catalyze the direct aldol reaction with a broad range of ketones and aromatic aldehydes, giving the corresponding aldol products

  由六种衍生自天然伯氨基酸的伯胺有机催化剂与2,4-二硝基苯酚（DNP）组合而成的有机催化系统已证明在盐水存在下无需进一步添加有机溶剂即可有效。由1f和DNP组成的系统是最有效的系统。它可以与广泛的酮和芳族醛催化直接的羟醛反应，以高收率提供相应的羟醛产物，具有高达近乎完美的非对映体和对映体选择性（最高99/1顺/反，对映体> 99％ee）。
• Organocatalysis with cysteine derivatives: recoverable and cheap chiral catalyst for direct aldol reactions
  作者：Shi Li、Xiangkai Fu、Chuanlong Wu

  DOI：10.1007/s11164-011-0336-5

  日期：2012.1

  Highly enantioselective, recoverable and cheap cysteine derivatives have been developed with improved solubility properties in common, nonpolar organic solvents. The reactions were catalyzed using 5 mol% 1e, and the aldol products could be obtained with up to 99:1 syn/anti ratio and >99% ee. The catalyst could be easily recovered and reused, with only a slight decrease of enantioselectivity observed for five cycles. Catalyst 1e can be efficiently used in large-scale reactions with enantioselectivity being maintained at the same level, which offers great possibility for application in industry. (i) Direct aldol reactions proceeded in 1,2-dichloroethane using simple procedures. (ii) Direct S-acylation of cysteine to give organocatalysts 1a–f can be economically carried out easily in a single step from commercially available sources, with both enantiomers being readily available. (iii) 5 mol% catalyst 1e was sufficient to furnish the aldol products in excellent yields (up to 93%) and enantioselectivities (up to 99%). (iv) Catalyst 1e could be easily recovered and reused, and also can be efficiently used in large-scale reactions with enantioselectivity being maintained at the same level, which offers great possibility for applications in industry.

  开发了一种高度对映选择性、可回收且廉价的半胱氨酸衍生物，其在常见的非极性有机溶剂中具有改善的溶解性特性。反应使用5 mol%催化剂1e进行催化，醛醇产物的syn/anti比率可高达99:1，对映体过量（ee）超过99%。催化剂可以轻松回收并重复使用，经过五个循环后仅观察到轻微的对映选择性降低。催化剂1e可以在大规模反应中有效使用，并维持相同水平的对映选择性，这为其在工业中的应用提供了很大可能性。(i) 直接醛醇反应在1,2-二氯乙烷中通过简单的程序进行。(ii) 半胱氨酸的直接S-酰化以获得有机催化剂1a-f，可以轻松地从商业来源通过一步经济地进行，两种对映体均易于获得。(iii) 5 mol%催化剂1e足以以优异的产率（高达93%）和对映选择性（高达99%）提供醛醇产物。(iv) 催化剂1e可以轻松回收和重复使用，并且可以在大规模反应中有效使用，保持相同水平的对映选择性，这为其在工业中的应用提供了极大的可能性。
• New simple and recyclable O-acylation serine derivatives as highly enantioselective catalysts for the large-scale asymmetric direct aldol reactions in the presence of water
  作者：Chuanlong Wu、Xiangkai Fu、Shi Li

  DOI：10.1016/j.tet.2011.03.083

  日期：2011.6

  products in high yields (up to 99%) and enantioselectivities (up to 99% ee). The catalyst 1b can be easily recovered and reused, and without significant decrease of enantioselectivity was observed for five cycles. This novel catalyst can be efficiently used in large-scale reactions with the enantioselectivities being maintained at the same level, which offers a great possibility for application in industry

  通过在室温下在三氟乙酸中将丝氨酸与酰氯合理结合，一步合成了新型的O-酰化丝氨酸衍生的有机催化剂。任何步骤均不涉及保护基团或色谱技术，某些组合的丝氨酸表面活性剂有机催化剂可介导酮与一系列芳香醛的直接羟醛反应，从而以高收率（高达99％）和对映选择性提供羟醛产物。 （最高99％ee）。催化剂1b可以容易地回收和再利用，并且在五个循环中未观察到对映选择性的显着降低。这种新催化剂可以有效地用于大规模反应，同时将对映选择性保持在同一水平，这为工业应用提供了很大的可能性。
• Highly efficient and solvent-free direct aldol reaction catalyzed by glucosamine-derived prolinamide
  作者：Jyoti Agarwal、Rama Krishna Peddinti

  DOI：10.1016/j.tetasy.2010.06.009

  日期：2010.8

  The catalytic activity of novel sugar-based prolinamides in the aldol reaction between ketones and aryl aldehydes has been examined. The prolinamide 1c was found to be an efficient organocatalyst for the asymmetric aldol reaction under solvent-free conditions. A variety of ketones and aldehydes were used as substrates and the corresponding aldol products were obtained in excellent chemical yields with

  已经研究了新型糖基脯氨酰胺在酮和芳基醛之间的醛醇缩合反应中的催化活性。发现脯氨酰胺1c是在无溶剂条件下不对称醛醇缩合反应的有效有机催化剂。多种酮和醛用作底物，并以优异的化学收率获得了相应的羟醛产物，同时具有很高的抗非对映选择性（高达99：1）和对映选择性（高达> 99％）。
• l-Valine Dipeptide Organocatalysts with Two Amide Units for the Direct Asymmetric Aldol Reaction in Brine
  作者：Wenbo Huang、Hua Tian、Hao Xu、Liangyu Zheng、Qingwen Liu、Suoqin Zhang

  DOI：10.1007/s10562-011-0589-z

  日期：2011.6

  a primary amine group and two amide units have been developed and evaluated in the direct asymmetric intermolecular aldol reaction of 4-nitrobenzaldehyde and cyclohexanone. When 2,4-dinitrophenol (DNP) was used as an acidic additive, the catalyzed reactions of various aldehydes and ketones gave the corresponding aldol products with moderate to high enantioselectivities (up to 95%) and diastereoselectivities

  一系列含有伯胺基团和两个酰胺单元的缬氨酸二肽有机催化剂已被开发并在 4-硝基苯甲醛和环己酮的直接不对称分子间醛醇反应中进行评估。当使用 2,4-二硝基苯酚 (DNP) 作为酸性添加剂时，各种醛和酮的催化反应得到相应的醛醇产物，具有中到高的对映选择性（高达 95%）和非对映选择性（高达 >99/1， anti/syn) 在 3c 存在于盐水中。图形摘要。