(2SR)-2-[(RS)-phenyl(phenylamino)methyl]cyclohexanone

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: (2SR)-2-[(RS)-phenyl(phenylamino)methyl]cyclohexanone
• 英文别名: 2-(phenyl(phenylamino)methyl)cyclohexanone；2-(phenyl(phenylamino)methyl)cyclohexan-1-one；anti-2-[1'-phenyl-1'-(N-phenyl)amino]methylcyclohexanone；(2R)-2-[(S)-anilino(phenyl)methyl]cyclohexan-1-one
• 化学式: C₁₉H₂₁NO
• 分子量: 279.382
• InChiKey: ITYLIHBJQIGSFJ-PKOBYXMFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  21
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  29.1
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (2SR)-2-[(RS)-phenyl(phenylamino)methyl]cyclohexanone 在 sodium tetrahydroborate 作用下， 以 甲醇 为溶剂， 生成 (+/-)-(1RS,2RS)-2-((SR)-phenyl(phenylamino)methyl)cyclohexanol
  参考文献：
  名称：

  N,N‘-Carbonyldiimidazole-Mediated Cyclization of Amino Alcohols to Substituted Azetidines and Other N-Heterocycles

  摘要：

  Amino alcohols are important synthons for N-heterocycles. We have developed an efficient method to activate hydroxyl groups, which avoids the use of toxic reagents and tolerates a wide variety of functional groups. Our strategy has been applied to the synthesis of functionalized p-methoxyphenyl-protected azetidines, pyrrolidines, and piperidines. The required amino alcohols were synthesized according to an optimized proline-catalyzed Mannich protocol. An azetidine analogue of ezetimibe was synthesized to demonstrate the potential for the synthesis of drug-like molecules.

  DOI：

  10.1021/jo060130b
• 作为产物：
  描述：

  环己酮 、 苯甲醛 、 苯胺 在 starch sulfonic acid 作用下， 以 水 为溶剂， 反应 2.0h， 以98%的产率得到(2SR)-2-[(RS)-phenyl(phenylamino)methyl]cyclohexanone
  参考文献：
  名称：

  High Stereoselective Mannich Reaction Catalyzed by Starch Sulfonic Acid in Water

  摘要：

  淀粉磺酸被用作高效且具有高度立体选择性的催化剂，在常温下于水相中促进醛、胺和酮的三组分曼尼赫反应，从而获得相应的β-氨基酮，具有良好至优异的立体选择性和产率。

  DOI：

  10.2174/157017809789124920

文献信息

• Salicylato Titanocene Complexes as Cooperative Organometallic Lewis Acid and Brønsted Acid Catalysts for Three-Component Mannich Reactions
  作者：Ya Wu、Chun Chen、Gai Jia、Xuyang Zhu、Huaming Sun、Guofang Zhang、Weiqiang Zhang、Ziwei Gao

  DOI：10.1002/chem.201402438

  日期：2014.7.7

  A binary acid system has been developed that features an air‐stable organometallic precursor, titanocene dichloride, and simple organic cooperative Brønsted acids, which allowed for mild and highly efficient Mannich reactions of both aryl and alkyl ketones with excellent yields and satisfactory diastereoselectivity. Mechanistic studies, including 1H NMR titration, X‐ray structure analyses as well as

  已经开发了一种二元酸体系，其特征是具有空气稳定性的有机金属前体，二茂钛二氯化物和简单的有机协作布朗斯台德酸，可实现芳基和烷基酮的温和高效的曼尼希反应，并具有优异的收率和令人满意的非对映选择性。机理研究，包括1 H NMR滴定，X射线结构分析以及催化活性物质的分离，阐明了这种新的二元酸体系的巨大协同作用。
• Brønsted Acid-Catalyzed Mannich-Type Reactions in Aqueous Media
  作者：Takahiko Akiyama、Jun Takaya、Hirotaka Kagoshima

  DOI：10.1002/1615-4169(200206)344:3/4<338::aid-adsc338>3.0.co;2-o

  日期：2002.6

  aldimines took place smoothly in aqueous organic solvent to afford β-aminocarbonyl compounds in high yields. The HBF4-catalyzed Mannich-type reaction also proceeded smoothly in water without organic solvent in the presence of a surfactant. A three-component synthesis starting from aldehyde, amine, and silyl enolate was successfully realized by means of a Bronsted acid in aqueous media.

  HBF4催化的甲硅烷基烯醇化物与醛亚胺的曼尼希型反应在水性有机溶剂中顺利进行，以高产率得到β-氨基羰基化合物。在表面活性剂存在下，HBF4催化的曼尼希型反应在没有有机溶剂的水中也能顺利进行。借助布朗斯台德酸在水性介质中成功实现了从醛、胺和烯醇甲硅烷基开始的三组分合成。
• Pronounced Catalytic Effect of a Micellar Solution of Sodium Dodecylsulfate (SDS) Upon a Three-Component Reaction of Aldehydes, Amines, and Ketones Under Neutral Conditions
  作者：Abbas Ali Jafari、Fatemeh Moradgholi、Fatemeh Tamaddon

  DOI：10.1002/ejoc.200801037

  日期：2009.3

  A micellar solution of anionic, cationic or neutral surfactants can be used as an excellent medium for three-component Mannich reactions of aldehydes, amines, and ketones at room temperature. Sodium dodecylsulfate turned out to efficiently catalyze the reaction in neutral pure water (pH ≈ 7), and the corresponding desired β-amino ketones precipitate while the reactions proceedes. This method provides

  阴离子、阳离子或中性表面活性剂的胶束溶液可用作醛、胺和酮在室温下进行三组分曼尼希反应的优良介质。结果证明十二烷基硫酸钠在中性纯水 (pH ≈ 7) 中有效催化反应，并且在反应进行时相应的所需 β-氨基酮沉淀。该方法在温和的反应条件、干净的反应曲线、提高的产率和优异的区域选择性和非对映选择性方面提供了一种新的改进的三组分曼尼希反应，后处理简单。观察到在水中中性条件下点击化学的有趣例子。 (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
• Hf(OTf)4 as a Highly Potent Catalyst for the Synthesis of Mannich Bases under Solvent-Free Conditions
  作者：Shuai-Bo Han、Jing-Ying Wei、Xiao-Chong Peng、Rong Liu、Shan-Shan Gong、Qi Sun

  DOI：10.3390/molecules25020388

  日期：——

  Hf(OTf)4 was identified as a highly potent catalyst (0.1–0.5 mol%) for three-component Mannich reaction under solvent-free conditions. Hf(OTf)4-catalyzed Mannich reaction exhibited excellent regioselectivity and diastereoselectivity when alkyl ketones were employed as substrates. 1H NMR tracing of the H/D exchange reaction of ketones in MeOH-d4 indicated that Hf(OTf)4 could significantly promote the

  Hf(OTf)4 被确定为在无溶剂条件下进行三组分曼尼希反应的高效催化剂（0.1-0.5 mol%）。当使用烷基酮作为底物时，Hf(OTf)4 催化的曼尼希反应表现出优异的区域选择性和非对映选择性。酮在 MeOH-d4 中的 H/D 交换反应的 1H NMR 示踪表明 Hf(OTf)4 可以显着促进酮-烯醇互变异构化，从而有助于加快反应速率。
• Mechanistic studies on counter-ionic effects of camphorsulfonate-based ionic liquids on kinetics, thermodynamics and stereoselectivity of β-amino carbonyl compounds
  作者：Sabahat Sardar、Erum Jabeen、Cecilia Devi Wilfred、Ahmad Sazali Hamzah、Jean-Marc Leveque

  DOI：10.1016/j.molliq.2020.114370

  日期：2020.12

  Catalysis is important in various applications of organic chemistry and its output product control for stereoselective compounds is outrageous. Establishment of experimental facts of stereoselective compounds from catalysis and their validation using theoretical evidences is the key to understand various mechanisms of optically active compounds. A family of new ionic liquids (ILs) with various imidazolium

  催化作用在有机化学的各种应用中很重要，其对立体选择化合物的输出产物控制非常苛刻。通过催化作用建立立体选择性化合物的实验事实，并使用理论证据对其进行验证，是理解旋光化合物各种机理的关键。已经合成了具有各种咪唑鎓阳离子和樟脑磺酸根阴离子作为对环境有益的液态盐的一系列新型离子液体（IL），并将其用于催化β-氨基羰基化合物。使用IL作为均相催化剂形成产物，具有优异的产物收率和非对映选择性。根据反应动力学和产物收率，研究了抗衡离子，IL的哈米特酸度和粘度以及溶剂和温度的影响。密度泛函理论（DFT）用于研究反应机理的热力学研究。DFT计算预测，催化机理涉及IL的两个抗衡离子。此外，有证据表明，合成途径需要较低的活化能，而反途径产生热力学稳定的产物。这项研究探索了使用IL作为潜在的均相催化剂生产立体选择性物质的新途径。