3-phenethylcyclopentanone

• 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: 3-phenethylcyclopentanone
• 英文别名: (3R)-3-(2-phenylethyl)cyclopentan-1-one
• 化学式: C₁₃H₁₆O
• 分子量: 188.269
• InChiKey: FWVFOIWKPZFNAB-GFCCVEGCSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  3-乙氧基-2-环戊烯酮 在 copper(l) chloride 二苯基硅烷 、 (±)-2,2 '-二(二-对甲苯基膦)-1,1 '-联萘 、 sodium t-butanolate 作用下， 以 四氢呋喃 、 正戊烷 为溶剂， 反应 3.0h， 生成 3-phenethylcyclopentanone
  参考文献：
  名称：

  One-Pot Sequential Cu-Catalyzed Reduction and Pd-Catalyzed Arylation of Silyl Enol Ethers

  摘要：

  {graphic} Enantiomerically enriched beta-substituted diphenylsilyl enol ethers, which can be prepared from Cu-catalyzed asymmetric conjugate reduction, are utilized in the Pd-catalyzed arylation of various aryl bromides. This new method provides a simple route to alpha-arylated cycloalkanones with excellent levels of enantiomeric and diastereomeric purity. The isolation of the intermediate, diphenylsilyl enol ethers is not necessary; the procedure can be carried out in one-pot.

  DOI：

  10.1021/ol048313c

文献信息

• Access to Optically Pure 4- and 5-Substituted Lactones:  A Case of Chemical−Biocatalytical Cooperation
  作者：Shaozhao Wang、Margaret M. Kayser、Valdas Jurkauskas

  DOI：10.1021/jo026605q

  日期：2003.8.1

  pure or highly enantiomerically enriched 4- and 5-substituted lactones are rather difficult to obtain. Chemical or enzymatic syntheses alone are not particularly successful. A combination of chemical catalysis and biocatalysis, however, provides a convenient route to a variety of these useful chiral compounds. In this paper we describe the synthesis of several optically pure 4- and 5-substituted lactones

  相当难以获得光学上纯的或高度对映体富集的4-和5-取代的内酯。单独的化学或酶促合成并不是特别成功。然而，化学催化和生物催化的组合提供了获得各种这些有用的手性化合物的便利途径。在本文中，我们描述了通过高度对映体富集的3烷基环酮的全细胞催化Baeyer-Villiger氧化获得的几种光学纯的4和5取代的内酯的合成。通过最近开发的相应烯酮的铜催化的不对称共轭还原，可以容易地获得这种手性酮。通过使用重组E.进行生物学的Baeyer-Villiger氧化，获得了非常高的近端区域选择性和完全的手性转移。过表达环戊酮单加氧酶（CPMO）的大肠杆菌菌株。一项比较研究表明，CPMO优于环己酮单加氧酶（CHMO）催化氧化获得的结果。
• Catalytic Asymmetric Intramolecular Hydroacylation with Rhodium/Phosphoramidite-Alkene Ligand Complexes
  作者：Thomas J. Hoffman、Erick M. Carreira

  DOI：10.1002/anie.201104595

  日期：2011.11.4

  Give me a P: An asymmetric intramolecular Rh‐catalyzed hydroacylation reaction of pent‐4‐enals for the preparation of functionalized cyclopentanones in good yield and high enantioselectivity is described (see scheme, DCE=dichloroethane). This process uses rhodium complexes featuring novel modular phosphoramidite–alkene ligands and achiral phosphine coligands.

  给我一个P：描述了戊4-烯醛的不对称分子内Rh催化加氢酰化反应，以高收率和高对映选择性制备官能化的环戊酮（参见方案，DCE =二氯乙烷）。该工艺使用具有新型模块化亚磷酰胺-烯烃配体和非手性膦大分子配体的铑配合物。
• Lewis Acid Catalysed Asymmetric One-Carbon Ring-Expansion of Prochiral Cyclobutanones
  作者：Johannes M. Wahl、Marius Tenberge

  DOI：10.1055/s-0042-1751386

  日期：2023.3

  Enantioselective methylene insertion into prochiral cyclobutanones is described providing access to chiral β-substituted cyclopentanones as important structural motif in synthesis and natural products. Commercially available trimethylsilyl as well as other silyl diazomethanes act as one-carbon synthon and scandium triflate is found to be a potent Lewis acid catalyst. By using bis(oxazoline) ligands, enantioinduction is achieved for a number of β-substituted cyclopentanones including examples bearing all-carbon quaternary stereocentres.

  摘要：本文描述了手性β-取代环戊酮的亲核亚甲基插入反应，提供了在合成和天然产物中作为重要结构基元的手性β-取代环戊烯酮的访问途径。商业上可获得的三甲基硅基以及其他硅基重氮甲烷作为一碳合成物，而三氟甲基硫酸钪则被发现是一种有效的路易斯酸催化剂。通过使用双噁唑啉配体，实现了对许多β-取代环戊烯酮的对映诱导，包括带有全碳季节立体中心的例子。
• One-Pot Sequential Cu-Catalyzed Reduction and Pd-Catalyzed Arylation of Silyl Enol Ethers
  作者：Junghyun Chae、Jaesook Yun、Stephen L. Buchwald

  DOI：10.1021/ol048313c

  日期：2004.12.1

  graphic} Enantiomerically enriched beta-substituted diphenylsilyl enol ethers, which can be prepared from Cu-catalyzed asymmetric conjugate reduction, are utilized in the Pd-catalyzed arylation of various aryl bromides. This new method provides a simple route to alpha-arylated cycloalkanones with excellent levels of enantiomeric and diastereomeric purity. The isolation of the intermediate, diphenylsilyl enol ethers is not necessary; the procedure can be carried out in one-pot.