ethyl (2S,1’R)-2-(p-methoxyphenylamino)-2-(2’-oxocycloheptyl)acetate | 908856-47-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: ethyl (2S,1’R)-2-(p-methoxyphenylamino)-2-(2’-oxocycloheptyl)acetate
• 英文别名: ethyl (S)-2-((4-methoxyphenyl)amino)-2-((R)-2-oxocycloheptyl)acetate；Ethyl (S)-2-((4-methoxyphenyl)amino)-2-((R)-2-oxocycloheptyl)acetate；ethyl (2S)-2-(4-methoxyanilino)-2-[(1R)-2-oxocycloheptyl]acetate
• CAS: 908856-47-3
• 化学式: C₁₈H₂₅NO₄
• 分子量: 319.401
• InChiKey: XGAOLBNNFSTSFS-RDJZCZTQSA-N

物化性质

• 沸点：
  468.4±25.0 °C(Predicted)
• 密度：
  1.138±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  23
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  64.6
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  ethyl (4-methoxyphenylimino)acetate 、 环庚酮 在 (R)-N-(pyrrolidin-3-yl)trifluoromethanesulfonamide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 48.0h， 以84%的产率得到ethyl (2S,1’R)-2-(p-methoxyphenylamino)-2-(2’-oxocycloheptyl)acetate
  参考文献：
  名称：

  3-Trifluoromethanesulfonamido-pyrrolidine:  A General Organocatalyst for anti-Selective Mannich Reactions

  摘要：

  Mannich-type reactions of a glyoxylate imine with carbonyl compounds catalyzed by 3-trifluoromethanesulfonamidopyrrolidine proceed with high yields and anti-stereoselectivity. The catalyst is easily prepared and the transformation appears to be quite general accommodating aldehydes or ketones.

  DOI：

  10.1021/ol8000975

文献信息

• Highly Active Organocatalysts for Asymmetric anti-Mannich Reactions
  作者：Rafael Martín-Rapún、Xinyuan Fan、Sonia Sayalero、Mahboubeh Bahramnejad、Félix Cuevas、Miquel A. Pericàs

  DOI：10.1002/chem.201101513

  日期：2011.8.1

  of enantiopure 4‐oxy‐substituted 3‐aminopyrrolidines arising from the enantioselective ring‐opening of meso‐3‐pyrroline oxide have been developed as catalysts for the asymmetric, anti‐selective Mannich reaction (see scheme; PMP=p‐methoxyphenyl; PG=protecting group). Very high catalytic activity (down to 0.01 mol % loading) and stereoselectivity have been recorded.

  减轻负担！已经开发了由内消旋3-吡咯啉氧化物的对映选择性开环产生的对映纯4-氧取代的3-氨基吡咯烷类，作为不对称，反选择性曼尼希反应的催化剂（见方案； PMP =对甲氧基苯基； PG ＝保护基）。记录到非常高的催化活性（低至0.01 mol％的负载量）和立体选择性。
• Asymmetric anti-Mannich reactions in continuous flow
  作者：Rafael Martín-Rapún、Sonia Sayalero、Miquel A. Pericàs

  DOI：10.1039/c3gc41444b

  日期：——

  A polystyrene-supported, pyrrolidine-based catalyst depicting very high activity and excellent stereoselectivity in the anti-Mannich reaction of aldehydes and ketones has been developed. The very robust, immobilized catalyst has been successfully used in the implementation of a continuous flow process with short residence times (down to 6 min) for the production of highly enantioenriched anti-type Mannich adducts at the preparative scale.

  开发了一种在醛和酮的反曼尼希反应中表现出极高活性和优异立体选择性的聚苯乙烯负载吡咯烷基催化剂。这种非常坚固的固定化催化剂已成功应用于连续流动工艺的实施，该工艺具有短停留时间（低至6分钟），用于制备规模上生产高度对映体富集的反式曼尼希加合物。
• Enantioselective aerobic oxidative cross-dehydrogenative coupling of glycine derivatives with ketones and aldehydes <i>via</i> cooperative photoredox catalysis and organocatalysis
  作者：Xiaorong Yang、Zhixiang Xie、Ying Li、Yuan Zhang

  DOI：10.1039/d0sc00683a

  日期：——

  glycine derivatives and simple ketones or aldehydes, which provides an efficient approach for the rapid synthesis of enantiopure unnatural α-alkyl α-amino acid derivatives in good yield with excellent diastereo- (up to >99 : 1) and enantioselectivities (up to 97% ee). This process includes the direct photoinduced oxidation of glycine derivatives to an imine intermediate, followed by the asymmetric Mannich-type

  光氧化还原催化和烯胺催化的结合使甘氨酸衍生物与简单的酮或醛之间的对映选择性好氧氧化交叉脱氢偶联成为可能，这为快速合成对映纯的非天然α-烷基α-氨基酸衍生物提供了一种有效的方法。高收率，非对映异构体（高达> 99：1）和对映选择性（高达97％ee）。此过程包括将甘氨酸衍生物直接光诱导氧化为亚胺中间体，然后与原位生成的烯胺中间体进行不对称曼尼希型反应由酮或醛和手性仲胺有机催化剂制得。这种温和的方法可以直接形成C–C键，同时安装两个新的立体中心，而不会浪费掉官能团。
• 4-Aminothiourea Prolinol<i>tert</i>-Butyldiphenylsilyl Ether: A Chiral Secondary Amine-Thiourea as Organocatalyst for Enantioselective<i>anti</i>-Mannich Reactions
  作者：Hui Zhang、Yongming Chuan、Zhengyu Li、Yungui Peng

  DOI：10.1002/adsc.200900399

  日期：2009.10

  anti-Selective Mannich reactions of N-p-methoxyphenyl (PMP)-protected α-iminoglyoxylate with unmodified aldehydes or ketones were effectively catalyzed by 4-aminothiourea prolinol tert-butyldiphenylsilyl ether. The reactions led to chiral β-amino carbonyl compounds in high yields (up to 94%), excellent diastereo- and enantioselectivities (up to 98% de and >99% ee). The study demonstrated for the first

  抗的-选择性曼尼希反应ñ - p -甲氧基苯基（PMP）与未改性的醛或酮-保护的α-iminoglyoxylate得到有效利用4-氨基硫脲脯氨醇催化叔-butyldiphenylsilyl醚。反应导致高收率（高达94％），出色的非对映异构和对映选择性（高达98％de和> 99％ee）的手性β-氨基羰基化合物。该研究首次证明，仲胺-硫脲手性有机催化剂可促进未修饰醛或酮与α-亚氨基乙醛酸酯的直接曼尼希型反应。
• TEMPO-Enabled Electrochemical Enantioselective Oxidative Coupling of Secondary Acyclic Amines with Ketones
  作者：Zhen-Hua Wang、Pei-Sen Gao、Xiu Wang、Jun-Qing Gao、Xue-Tao Xu、Zeng He、Cong Ma、Tian-Sheng Mei

  DOI：10.1021/jacs.1c08671

  日期：2021.9.29

  asymmetric coupling of secondary acyclic amines with ketones via a Shono-type oxidation has been described, affording the corresponding amino acid derivatives with good to excellent diastereoselectivity and enantioselectivity. The addition of an N-oxyl radical as a redox mediator could selectively oxidize the substrate rather than the product, although their oxidation potential difference is subtle (about

  已经描述了仲无环胺与酮通过 Shono 型氧化的电化学不对称偶联，提供了具有良好至优异的非对映选择性和对映选择性的相应氨基酸衍生物。添加N-氧基自由基作为氧化还原介质可以选择性氧化底物而不是产物，尽管它们的氧化电位差异很小（约 13 mV）。这种电化学转化在没有化学计量添加剂（包括金属、氧化剂和电解质）的情况下进行，这使其具有良好的官能团兼容性。机理研究表明，质子介导的产物外消旋化可通过阴极处质子的还原来防止。