2-methyl-1-phenyl-1-[N-(4-methoxyphenyl)amino]pentan-3-one

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 2-methyl-1-phenyl-1-[N-(4-methoxyphenyl)amino]pentan-3-one
• 英文别名: (1R,2R)-1-(4-methoxyanilino)-2-methyl-1-phenylpentan-3-one
• 化学式: C₁₉H₂₃NO₂
• 分子量: 297.397
• InChiKey: XNRWMHXLYHMNAO-IFXJQAMLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.7
• 重原子数：
  22
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  38.3
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  苯甲醛 、 甲氧苯胺 、 3-戊酮 在 5-磺基水杨酸 作用下， 以 水 为溶剂， 反应 7.0h， 以68%的产率得到
  参考文献：
  名称：

  5-磺基水杨酸在纯水中催化曼尼希直接反应

  摘要：

  水溶性布朗斯台德酸5-磺基水杨酸可在纯水中有效催化环己酮和3-戊酮的直接三组分曼尼希反应。给出了21个Mannich反应的例子，该例子提供了相应的β-氨基酮，产率高达97％，非对映选择性也不错。酸催化剂可以水溶液形式循环至少六次，曼尼希产品的产率保持在90％以上。

  DOI：

  10.1016/j.molcata.2014.08.017

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。
• The Scope of the Direct Proline-Catalyzed Asymmetric Addition of Ketones to Imines
  作者：Wolfgang Notz、Shin-ichi Watanabe、Naidu S. Chowdari、Guofu Zhong、Juan M. Betancort、Fujie Tanaka、Carlos F. Barbas

  DOI：10.1002/adsc.200404114

  日期：2004.8

  A full account of catalytic direct asymmetric Mannich-type reactions is presented describing the scope of amino acid-catalyzed additions of unmodified ketones to a large variety of imines. These reactions are performed under very mild, operationally simple, and environmentally friendly and benign conditions employing a one-pot, three-component protocol as well as preformed imines. Typically, products

  提供了催化直接不对称曼尼希型反应的完整说明，描述了氨基酸催化的未修饰酮加到各种亚胺中的范围。这些反应是在非常温和的，操作简单的，环境友好的和良性的条件下进行的，采用一锅，三组分方案以及预先形成的亚胺。通常，获得的产物具有高区域和非对映选择性以及极好的对映选择性。所开发的方法学被用作合成对映体纯的功能化α-氨基酸，γ-内酯，肟功能化氨基酸以及药理学上重要的靶标（如（R）-环己基甘氨酸）的有力方法。
• 5-Sulfosalicylic acid catalyzed direct Mannich reaction in pure water
  作者：Chun Chen、Xuyang Zhu、Ya Wu、Huaming Sun、Guofang Zhang、Weiqiang Zhang、Ziwei Gao

  DOI：10.1016/j.molcata.2014.08.017

  日期：2014.12

  A water-soluble Brønsted acid, 5-sulfosalicylic acid, efficiently catalyzed the direct three-component Mannich reactions of cyclohexanone and 3-pentanone in pure water. 21 Examples of Mannich reactions were presented, which afforded the corresponding β-amino ketones with up to 97% yield and decent diastereoselectivities. The acid catalyst can be recycled as an aqueous solution for at least six times

  水溶性布朗斯台德酸5-磺基水杨酸可在纯水中有效催化环己酮和3-戊酮的直接三组分曼尼希反应。给出了21个Mannich反应的例子，该例子提供了相应的β-氨基酮，产率高达97％，非对映选择性也不错。酸催化剂可以水溶液形式循环至少六次，曼尼希产品的产率保持在90％以上。
• One-pot three-component Mannich-type reaction catalyzed by trifluoromethanesulfonic acid in water
  作者：Gang Li、Hankui Wu、Zhiyong Wang、Xianli Wang

  DOI：10.1134/s0023158411010113

  日期：2011.2

  One-pot three-component Mannich-type reaction of ketones, aldehydes and amines was efficiently catalyzed by liquid trifluoromethanesulfonic acid in water at ambient temperature. The high yield of corresponding β-amino ketones compounds were achieved. The proposed method is mild, green, simple and efficient.

  在环境温度下，液体三氟甲磺酸在水中能有效地催化酮，醛和胺的一锅三组分曼尼希型反应。实现了高产率的相应β-氨基酮化合物。该方法温和，绿色，简单，有效。
• Solvent strategy for unleashing the Lewis acidity of titanocene dichloride for rapid Mannich reactions
  作者：Ya Wu、Xiu Wang、Yanlong Luo、Jing Wang、Yajun Jian、Huaming Sun、Guofang Zhang、Weiqiang Zhang、Ziwei Gao

  DOI：10.1039/c5ra27094d

  日期：——

  The remarkable activation effect of alcohol solvent on kinetically inert titanocene dichloride was found to promote rapid three-component Mannich reactions. NMR and ESI-MS analyses as well as a control experiment of catalytic active species elucidated that the coordination of MeOH to the titanocene moiety unleashed the Lewis acid [Cp2Ti(OMe)2] and Brønsted acid HCl, which led to the enhanced catalytic

  发现醇溶剂对动力学惰性二茂钛二氯化物的显着活化作用促进了快速的三组分曼尼希反应。NMR和ESI-MS分析以及催化活性物种的对照实验表明，MeOH与二茂钛部分的配位释放出路易斯酸[Cp 2 Ti（OMe）2 ]和布朗斯台德HCl，从而增强了催化作用Cp 2 TiCl 2的活性。