2-[hydroxy-(2-nitrophenyl)methyl]cyclohexan-1-one | 29202-79-7

• 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]cyclohexan-1-one
• 英文别名: 2-(hydroxy(2-nitrophenyl)methyl)cyclohexanone；2-(hydroxy-(o-nitrophenyl)methyl)cyclohexan-1-one
• CAS: 29202-79-7
• 化学式: C₁₃H₁₅NO₄
• 分子量: 249.266
• InChiKey: CQUCPYRFCCLXKV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  83.1
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-[hydroxy-(2-nitrophenyl)methyl]cyclohexan-1-one 在 草酸 作用下， 生成 2-(2-Nitrobenzyliden)cyclohexanon-(1)
  参考文献：
  名称：

  Vieweg; Wagner, Pharmazie, 1980, vol. 34, # 12, p. 785 - 788

  摘要：

  DOI：
• 作为产物：
  描述：

  环己酮 、 邻硝基苯甲醛 在 (S)-N-((1R,2R)-2-(3-(3,5-bis(trifluoromethyl)phenyl)thioureido)cyclohexyl)pyrrolidine-2-carboxamide 、 溶剂黄146 作用下， 以 水 、 二甲基亚砜 为溶剂， 反应 2.0h， 以94%的产率得到2-[hydroxy-(2-nitrophenyl)methyl]cyclohexan-1-one
  参考文献：
  名称：

  手性脯氨酸酰胺-硫脲双功能催化剂催化的高度不对称直接羟醛反应

  摘要：

  制备了一系列衍生自 l-脯氨酸和手性二胺的手性脯氨酸酰胺 - 硫脲双功能催化剂，并成功应用于环己酮与各种醛的高对映选择性直接醛醇反应，收率（85%–97%）、非对映选择性（反/同步） > 20:1) 和对映选择性（高达 91% ee）。

  DOI：

  10.1139/v11-029

文献信息

• Prolinamides of Aminouracils, Organocatalyst Modifiable by Complementary Modules
  作者：Karen M. Ruíz-Pérez、Beatriz Quiroz-García、Marcos Hernández-Rodríguez

  DOI：10.1002/ejoc.201800886

  日期：2018.11.8

  Prolinamide organocatalysts with aminouracils have the features of enhanced NH acidity, an additional hydrogen‐bond donor and the self‐assembly with complementary modules by Watson–Crick pairing. Each module affects the selectivity of the reaction and particularly 2,6‐diaminopyridine is beneficial to the selectivity in the reaction.

  带有氨基尿嘧啶的脯氨酰胺有机催化剂具有增强的NH酸度，额外的氢键供体以及通过沃森-克里克配对与互补模块自组装的特点。每个模块都会影响反应的选择性，特别是2,6-二氨基吡啶对反应的选择性有益。
• Enamine-Metal Lewis Acid Bifunctional Catalysis: Application to Direct Asymmetric Aldol Reaction of Ketones
  作者：Zhenghu Xu、Philias Daka、Ilya Budik、Hong Wang、Fu-Quan Bai、Hong-Xing Zhang

  DOI：10.1002/ejoc.200900678

  日期：2009.9

  Unprecedented bifunctional enamine–metal Lewis acid catalysts have been developed. In this bifunctional catalytic system, a tridentate ligand tethered with a chiral secondary amine was designed to solve the acid–base self-quenching problem leading to catalyst inactivation. This new bifunctional enamine–metal Lewis acid catalyst was found to catalyze aldol reactions of ketones efficiently in high yields

  已经开发出前所未有的双功能烯胺-金属路易斯酸催化剂。在这种双功能催化系统中，设计了一种与手性仲胺相连的三齿配体，以解决导致催化剂失活的酸碱自淬灭问题。发现这种新型双功能烯胺-金属路易斯酸催化剂能够以高产率有效催化酮的羟醛反应，并具有良好到优异的非对映选择性和对映选择性。（© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009）
• Molecular-Sieves Controlled Diastereo- and Enantioselectivity: Unexpected Effect in the Organocatalyzed Direct Aldol Reaction
  作者：Jun-An Ma、Xiao-Juan Li、Guang-Wu Zhang、Lian Wang、Ming-Qing Hua

  DOI：10.1055/s-2008-1072586

  日期：2008.5

  An efficient asymmetric organocatalyst was developed for the direct aldol reaction between ketones and aldehydes to afford β-hydroxy ketones in high stereoselectivity (anti/syn up to 92:8, ee up to >99%). The key of the success was the use of activated molecular sieves (4 ŠMS), which acted as a water scavenger. The influence of additives such as water or different types of molecular sieves on the reactivity and stereoselectivity of the reaction was also studied.

  一种高效的非对称有机催化剂被开发出来，用于酮和醛之间的直接aldol反应，以高立体选择性（anti/syn高达92:8，ee高达>99%）制备β-羟基酮。成功的关键在于使用了活化的分子筛（4 Å MS），其作为水的清除剂。还研究了水分或不同类型分子筛等添加剂对反应活性和立体选择性的影响。
• SULFONAMIDE-BASED ORGANOCATALYSTS AND METHOD FOR THEIR USE
  申请人：Carter Rich Garrett

  公开号：US20100184986A1

  公开（公告）日：2010-07-22

  Organocatalysts, particularly proline sulfonamide organocatalysts, having a first general formula as follows are disclosed. Embodiments of a method for using these organocatalysts also are disclosed. The method comprises providing a disclosed organocatalyst, and performing a reaction, often an enantioselective or diastereoselective reaction, using the organocatalyst. Solely by way of example, disclosed catalysts can be used to perform aldol reactions, conjugate additions, Michael additions, Robinson annulations, Mannich reactions, α-aminooxylations, α-hydroxyaminations, α-aminations and alkylation reactions. Certain of such reactions are intramolecular cyclizations used to form cyclic compounds, such as 5- or 6-membered rings, having one or more chiral centers. Disclosed organocatalysts generally are much more soluble in typical solvents used for organic synthesis than are known compounds. Moreover, the reaction yield is generally quite good with disclosed compounds, as is their enantioselective and diastereoselective effectiveness.

  披露了具有如下一般公式之一的有机催化剂，尤其是脯氨酸磺酰胺有机催化剂。还披露了使用这些有机催化剂的方法的实施例。该方法包括提供一种披露的有机催化剂，并使用该有机催化剂进行反应，通常是立体选择性的反应或对映选择性反应。仅作为示例，披露的催化剂可用于进行aldol反应、共轭加成、Michael加成、Robinson环化反应、Mannich反应、α-氨基氧化、α-羟基胺化、α-胺化和烷基化反应。其中一些反应是分子内环化反应，用于形成具有一个或多个手性中心的环状化合物，例如5或6元环。披露的有机催化剂通常比已知的化合物更容易溶于用于有机合成的典型溶剂中。此外，使用披露化合物的反应收率通常相当好，它们的对映选择性和非对映选择性效果也很好。
• Recoverable silica-gel supported binam-prolinamides as organocatalysts for the enantioselective solvent-free intra- and intermolecular aldol reaction
  作者：Abraham Bañón-Caballero、Gabriela Guillena、Carmen Nájera、Enrico Faggi、Rosa María Sebastián、Adelina Vallribera

  DOI：10.1016/j.tet.2012.11.097

  日期：2013.1

  supported binam-derived prolinamides are efficient organocatalysts for the direct intramolecular and intermolecular aldol reaction under solvent-free conditions using conventional magnetic stirring. These organocatalysts in combination with benzoic acid showed similar results to those obtained under similar homogeneous reaction conditions using an organocatalyst of related structure. For the intermolecular process

  硅胶负载的比纳姆衍生的脯氨酰胺是使用常规磁力搅拌在无溶剂条件下直接进行分子内和分子间羟醛直接反应的有效有机催化剂。这些与苯甲酸组合的有机催化剂显示出与使用相关结构的有机催化剂在相似的均相反应条件下获得的结果相似的结果。对于分子间方法，羟醛产物是在室温下且仅使用2当量的酮获得的，具有高产率，区域，非对映和对映选择性。在这些反应条件下，醛之间的交叉羟醛反应也是可能的。回收的催化剂最多可重复使用九次，从而获得相似的结果。更有趣的是，