(5R) ethyl δ-hydroxy-δ-phenyl-β-oxo-pentanoate | 848900-50-5

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 酮酸及其衍生物
• 英文名称: (5R) ethyl δ-hydroxy-δ-phenyl-β-oxo-pentanoate
• 英文别名: ethyl 5-hydroxy-3-oxo-5-phenylpentanoate；ethyl (5R)-5-hydroxy-3-oxo-5-phenylpentanoate
• CAS: 848900-50-5
• 化学式: C₁₃H₁₆O₄
• 分子量: 236.268
• InChiKey: RWMIZRRUNPQFSQ-GFCCVEGCSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  17
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  63.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (5R) ethyl δ-hydroxy-δ-phenyl-β-oxo-pentanoate 在 sodium hydroxide 作用下， 反应 0.33h， 以98%的产率得到(R)-3-hydroxy-butanoic acid methyl ester
  参考文献：
  名称：

  A Chemoenzymatic Approach to Optically Active 5-Hydroxy-3-oxo-carboxylates

  摘要：

  酶促水解被应用于某些手性5-羟基-3-氧基羧酸酯的制备，这些化合物是通过形成内酯衍生物和四氢吡喃环用于天然产物合成的潜在前体。

  DOI：

  10.1055/s-2004-817746
• 作为产物：
  描述：

  ethyl 5-hydroxy-3-oxo-5-phenylpentanoate 在 4-二甲氨基吡啶 、 水 、 N,N'-二环己基碳二亚胺 、 磷脂酶B 作用下， 以 二氯甲烷 、 异丙醚 为溶剂， 反应 24.0h， 生成 (5R) ethyl δ-hydroxy-δ-phenyl-β-oxo-pentanoate
  参考文献：
  名称：

  A Chemoenzymatic Approach to Optically Active 5-Hydroxy-3-oxo-carboxylates

  摘要：

  酶促水解被应用于某些手性5-羟基-3-氧基羧酸酯的制备，这些化合物是通过形成内酯衍生物和四氢吡喃环用于天然产物合成的潜在前体。

  DOI：

  10.1055/s-2004-817746

文献信息

• A Chemoenzymatic Approach to Optically Active 5-Hydroxy-3-oxo-carboxylates
  作者：Chengye Yuan、Chengfu Xu、Yonghui Zhang

  DOI：10.1055/s-2004-817746

  日期：——

  Enzymatic hydrolysis was applied to the preparation of certain chiral 5-hydroxy-3-oxo-carboxylates that are potential precursors for natural product synthesis via the formation of lactone derivatives and tetrahydropyran rings.

  酶促水解被应用于某些手性5-羟基-3-氧基羧酸酯的制备，这些化合物是通过形成内酯衍生物和四氢吡喃环用于天然产物合成的潜在前体。
• Construction of the Tricyclic Furanochroman Skeleton of Phomactin A via the Prins/Conia-Ene Cascade Cyclization Approach
  作者：Shuangping Huang、Guangyan Du、Chi-Sing Lee

  DOI：10.1021/jo200644t

  日期：2011.8.19

  asymmetric Prins/Conia-ene cascade cyclization has been developed with In(OTf)3 in CH3CN from 0 to 70 °C. These conditions afforded very good yields of the 1-oxadecalin product in one pot and effectively suppressed the racemization of the 1-oxadecalin product with almost no enantiomeric excess (ee) loss. This cascade cyclization has been successfully employed for the construction of the highly functionalized

  用In（OTf）3在CH 3中开发了底物控制的不对称Prins / Conia-ene级联环化反应CN从0到70°C。这些条件使一锅中的1-oxadecalin产品的收率非常好，并有效地抑制了1-oxadecalin产品的消旋作用，几乎没有对映体过量（ee）的损失。通过一锅操作（66％的收率，单一的非对映异构体），这种级联环化已成功用于以无环β-酮酯和炔基为底物的高蛋白功能化的光蛋白A的1-oxadecalin单元的构建。在非常温和的条件下，可以通过三步，以52％的收率通过环氧化/脱烷氧羰基化方案，将1-oxadecalin部分轻松转化为phomactin A的三环呋喃铬烷骨架。
• Organocatalytic Asymmetric Peroxidation of γ,δ-Unsaturated β-Keto Esters—A Novel Route to Chiral Cycloperoxides
  作者：Mary C. Hennessy、Hirenkumar Gandhi、Timothy P. O’Sullivan

  DOI：10.3390/molecules28114317

  日期：——

  A methodology for the asymmetric peroxidation of γ,δ-unsaturated β-keto esters is presented. Using a cinchona-derived organocatalyst, the target δ-peroxy-β-keto esters were obtained in high enantiomeric ratios of up to 95:5. Additionally, these δ-peroxy esters can be readily reduced to chiral δ-hydroxy-β-keto esters without impacting the β-keto ester functionality. Importantly, this chemistry opens

  介绍了 γ,δ-不饱和 β-酮酯的不对称过氧化方法。使用金鸡纳衍生的有机催化剂，以高达 95:5 的高对映体比例获得了目标 δ-过氧-β-酮酯。此外，这些 δ-过氧酯可以很容易地还原为手性 δ-羟基-β-酮酯，而不会影响 β-酮酯的功能。重要的是，这种化学通过一种新的 P2O5 介导的相应 δ-过氧-β-羟基酯的环化，为手性 1,2-二氧戊环（许多生物活性天然产物中的常见基序）开辟了一条简洁的途径。
• A convenient stereoselective synthesis of 5-hydroxy-3-oxoesters and 3-hydroxy-5-oxoesters
  作者：Anna Żądło-Dobrowolska、Joerg H. Schrittwieser、Barbara Grischek、Dominik Koszelewski、Wolfgang Kroutil、Ryszard Ostaszewski

  DOI：10.1016/j.tetasy.2017.05.005

  日期：2017.6

  A biocatalytic approach was employed for the asymmetric reduction of sterically demanding ketones to prepare 3-hydroxy-5-oxo-5-phenylpentanoates and 5-hydroxy-3-oxo-5-phenylpentanoates. Screening a collection of microorganisms led to the identification of stereocomplementary microbial strains that provide access to both enantiomers of 3-hydroxy-5-oxo-5-phenylpentanoates and 5-hydroxy-3-oxo-5-phenylpentanoates with high enantiomeric excess (up to 99% ee). Moreover, the application of Saccharomyces cerevisiae gave two diastereomers of 3,5-dihydroxy-5-phenylpentanoates with high enantiomeric excess (up to 99% ee). The applicability of the identified strains was demonstrated by transforming the obtained dihydroxy ester into the chemically valuable lactone (4S,6R)-tetrahydro-4-hydroxy-6-phenyl-pyran-2-one. (C) 2017 Elsevier Ltd. All rights reserved.
• Candida Rugosa lipase-catalyzed kinetic resolution of β-hydroxy-β-arylpropionates and δ-hydroxy-δ-aryl-β-oxo-pentanoates
  作者：Chengfu Xu、Chengye Yuan

  DOI：10.1016/j.tet.2004.12.059

  日期：2005.2

  A simple and convenient method was reported for the preparation of optically active beta-hydroxy-beta-arylpropionates, delta-hydroxy-delta-aryl-beta-oxo-pentanoates and their butyryl derivatives via CRL-catalyzed hydrolysis. The optically active products are potential precursors of some chiral pharmaceuticals and natural products. (C) 2005 Elsevier Ltd. All rights reserved.