2-[hydroxy(2-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(2-nitrophenyl)methyl]cyclopentanone
• 英文别名: (2S)-2-[(S)-hydroxy-(2-nitrophenyl)methyl]cyclopentan-1-one
• 化学式: C₁₂H₁₃NO₄
• 分子量: 235.24
• InChiKey: JOELUJCLBZDDSS-BXKDBHETSA-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：

  邻硝基苯甲醛 、 环戊酮 在 1,4-di(trans-4-tert-butyldiphenylsiloxy-L-prolinamide)butane 、 水 作用下， 反应 24.0h， 以99%的产率得到
  参考文献：
  名称：

  Synergistic effects within a C2-symmetric organocatalyst: the potential formation of a chiral catalytic pocket

  摘要：

  本研究介绍了五种新型 C2 对称有机催化剂的合成，这些催化剂可在不使用添加剂的情况下，以较低的催化剂负载量（1 摩尔%）促进水上不对称醛醇反应。每种催化剂都由两个二烯丙基酰胺单元组成，并由一个对称的烷基桥基连接，从而可以系统地调节催化位点的邻近性。通常情况下，本手稿中催化位点距离较近的催化剂在转化率（高达 >99%）、非对映异构体比率（4/96，同/反）和对映异构体过量（高达 97%）方面的反应效果最好。这种效果归因于在水包油界面的氢键作用下形成的手性口袋。

  DOI：

  10.1039/c3ob27250h

文献信息

• Direct Asymmetric Aldol Reaction Catalyzed by C2-Symmetrical Chiral Primary Amine Organocatalysts
  作者：Gong-Jian Zhu、Chao-Shan Da、Ya-Ning Jia、Xiao Ma、Lei Yi

  DOI：10.2174/157017810790533904

  日期：2010.1.1

  C-2-symmetrical chiral primary amines were synthesized from chiral BINOL and diamines. Then their catalytic activities in the asymmetric aldol reactions were evaluated, and the result indicated that 1c was the optimal organocatalyst. The reaction of a variety of aromatic aldehydes with aliphatic ketones, catalyzed by 20 mol % 1c in the addition of benzoic acid in carbon tetrachloride, afforded the aldol products

  从手性 BINOL 和二胺合成了三种新型 C-2 对称手性伯胺。然后评估了它们在不对称醛醇反应中的催化活性，结果表明1c是最佳的有机催化剂。在四氯化碳中加入苯甲酸，在 20 mol % 1c 的催化下，多种芳香醛与脂肪族酮反应得到高产率（高达 92%）和良好的对映选择性（高达 71%）的醛醇产物.
• Monofunctional primary amine: A new class of organocatalyst for asymmetric Aldol reaction
  作者：KHIANGTE VANLALDINPUIA、PORAG BORA、GHANASHYAM BEZ

  DOI：10.1007/s12039-017-1237-y

  日期：2017.3

  organocatalysts involving a primary amine as the only functional group is developed for catalytic asymmetric aldol reaction of cyclohexanone/cyclopentanone with various aryl aldehydes in the presence of benzoic acid as an additive at −10∘C. In an unexpected observation, the primary amine catalyzed reactions gave excellent yield and good to excellent stereoselectivity, while secondary amines were found to have

  在-10 ° C的条件下，在苯甲酸作为添加剂存在的情况下，开发了一种新型的有机催化剂，其中以伯胺为唯一的官能团，用于环己酮/环戊酮与各种芳基醛的催化不对称醛醇缩合反应。伯胺催化的反应具有出色的收率和良好的立体选择性，而在相似的反应条件下，仲胺的反应性很小或没有。 一类新的与伯胺作为唯一的催化活性官能团aminocatalysts的混合物用于与苯甲酸的存在作为添加剂在-10各种芳基醛的环己酮/环戊酮的不对称催化醛醇缩合反应开发ö整齐的条件下下进行。
• Direct asymmetric aldol reactions between aldehydes and ketones catalyzed by l-tryptophan in the presence of water
  作者：Zhaoqin Jiang、Hui Yang、Xiao Han、Jie Luo、Ming Wah Wong、Yixin Lu

  DOI：10.1039/b921460g

  日期：——

  Primary amino acids and their derivatives were investigated as catalysts for the direct asymmetric aldol reactions between ketones and aldehydes in the presence of water, and L-tryptophan was shown to be the best catalyst. Solvent effects, substrate scope and the influence of water on the reactions were investigated. Quantum chemical calculations were performed to understand the origin of the observed

  研究了伯氨基酸及其衍生物作为在水存在下酮与醛之间直接不对称醛醇缩合反应的催化剂，L-色氨酸是最好的催化剂。研究了溶剂效应，底物范围和水对反应的影响。进行量子化学计算以了解观察到的立体选择性的起源。
• 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％）。