(5R) methyl δ-hydroxy-δ-(p-methylphenyl)-β-oxo-pentanoate

• 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: (5R) methyl δ-hydroxy-δ-(p-methylphenyl)-β-oxo-pentanoate
• 英文别名: methyl (5R)-5-hydroxy-5-(4-methylphenyl)-3-oxopentanoate
• 化学式: C₁₃H₁₆O₄
• 分子量: 236.268
• InChiKey: IENXRRPGFSROLK-GFCCVEGCSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.55
• 重原子数：
  17.0
• 可旋转键数：
  5.0
• 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：
  1.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  5-Hydroxy-3-oxo-5-p-tolyl-pentanoic acid methyl ester 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) methyl δ-hydroxy-δ-(p-methylphenyl)-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。
• 1-Naphthyl-TADDOL/Emim BF4: A new catalytic system for the asymmetric addition of Chan’s diene to aromatic aldehydes
  作者：Rosaria Villano、Maria Acocella、Vincenzo Sio、Arrigo Scettri

  DOI：10.2478/s11532-010-0100-5

  日期：2010.12.1

  A new organocatalytic system was tested as a promoter for the asymmetric addition of Chan’s diene to aldehydes under solvent-free conditions. This new organocatalyst generated in situ by mixing 1-naphthyl-TADDOL derivative and Emim BF4 was able to give enantioenriched vinylogous aldols and hetero-Diels-Alder cycloadducts. A mechanistic investigation through the detection of nonlinear effects confirmed

  测试了一种新的有机催化体系，作为在无溶剂条件下将Chan's二烯不对称加成到醛中的促进剂。通过将1-萘基-TADDOL衍生物和Emim BF 4混合原位生成的这种新的有机催化剂能够提供对映体富集的乙烯基醇醛醇和杂-Diels-Alder环加合物。通过检测非线性效应进行的机械研究证实了离子液体参与了新的催化超分子物质的形成。
• Solvent-free asymmetric vinylogous aldol reaction of Chan's diene with aromatic aldehydes catalyzed by hydrogen bonding
  作者：Rosaria Villano、Maria Rosaria Acocella、Antonio Massa、Laura Palombi、Arrigo Scettri

  DOI：10.1016/j.tet.2009.01.112

  日期：2009.7

  Chan's diene proved to react with aromatic aldehydes under organocatalytic conditions in presence of a chiral naphthyl-TADDOL derivative to give vinylogous aldols (up to 65% ee) with complete gamma-selectivity. A further process of hetero-Diels-Alder cycloaddition, leading to chiral pyran-4-one derivatives (up to 60% ee), was favoured by electron-withdrawing substituents on the aromatic ring. (C) 2009 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.