3-溴-2-氧代-4-苯基丁酸乙酯 | 292858-05-0

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: 3-溴-2-氧代-4-苯基丁酸乙酯
• 英文名称: ethyl 3-bromo-2-oxo-4-phenylbutanoate
• 英文别名: ethyl 3-bromo-2-oxo-4-phenylbutyrate
• CAS: 292858-05-0
• 化学式: C₁₂H₁₃BrO₃
• 分子量: 285.137
• InChiKey: CGNJOYUSPNGALU-UHFFFAOYSA-N

物化性质

• 沸点：
  335.9±35.0 °C(Predicted)
• 密度：
  1.408±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  16
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3-溴-2-氧代-4-苯基丁酸乙酯 在 5%-palladium/activated carbon 、 sodium acetate 作用下， 以 乙醇 为溶剂， 反应 74.0h， 生成 (S)-4-苯基-2-羟基丁酸乙酯
  参考文献：
  名称：

  Asymmetric Bioreduction of Ethyl 3-Halo-2-oxo-4-phenylbutanoate by Saccharomyces cerevisiae Immobilized in Ca-Alginate Beads with Double Gel Layer

  摘要：

  The asymmetric bioreduction of ethyl 3-halo-2-oxo-4- phenylbutanoate was studied for several microorganisms and especially for Saccharomyces cerevisiae. The highest chemical yield (90%), de (70%) and ee (96-99%) were obtained with S. cerevisiae immobilized in calcium alginate beads with double gel layers, and reaction conditions were optimized by changing matrix of immobilization, concentration of substrate, and feeding with glucose as electron donor. The entrapment of cells with double gel layers was fundamental to achieve high enantio- and diastereoselectivity.

  DOI：

  10.1021/op0502497
• 作为产物：
  描述：

  2-氧代-4-苯基丁酸乙酯 在 溴 作用下， 以 氯仿 为溶剂， 反应 1.0h， 以87%的产率得到3-溴-2-氧代-4-苯基丁酸乙酯
  参考文献：
  名称：

  被设计为潜在的芳香酶抑制剂的二芳基取代的咪唑并[1,2-a]吡啶的合成。

  摘要：

  从双环杂环作为芳香酶抑制剂的药效团模型，我们设计了三个系列的咪唑并[1,2-a]吡啶衍生物。报道了各种化合物的合成和光谱测定。获得这些化合物（10b）之一的晶体数据。在体外评估了芳香化酶抑制能力，未发现活性。

  DOI：

  10.1248/cpb.48.935

文献信息

• Exploration and Optimization of an Efficient One-pot Sequential Synthesis of Di/tri-substituted Thiazoles from α-Bromoketones, Thioacids Salt, and Ammonium Acetate
  作者：Eeda Venkateswararao、Hitesh B. Jalani、Manickam Manoj、Sang-Hun Jung

  DOI：10.1002/jhet.2446

  日期：2016.9

  Exploration of scope of an optimized one‐pot sequential procedure for preparing of 2,4‐di‐ and 2,4,5‐tri‐substituted thiazoles has been accomplished. The synthesis was performed by the initial formation of a β‐keto‐thioester intermediate from nucleophilic substitution of α‐bromoketones with thioacid potassium salts, followed by treatment with ammonium acetate and one equivalent of acetic acid in toluene

  探索了用于制备2,4-二-和2,4,5-三-取代的噻唑的优化单锅顺序程序的范围。通过用硫代酸钾盐亲核取代α-溴酮，首先形成β-酮-硫酯中间体，然后用乙酸铵和一当量的乙酸在甲苯中处理，形成亚胺中间体，从而最终导致环化反应产生噻唑。该过程应以灵活的方式加以强调，以通过选择适当取代的α-溴酮（甚至包含酸不稳定的官能团和硫代酸钾盐）来控制噻唑环周围的取代方式，因此其适用性非常广泛。
• [EN] THIAZOLE DERIVATIVES AND THEIR USE AS VAP-1 INHIBITORS<br/>[FR] DERIVES DE THIAZOLE ET LEUR UTILISATION EN TANT QU'INHIBITEURS DE VAP-1
  申请人：FUJISAWA PHARMACEUTICAL CO

  公开号：WO2004067521A1

  公开（公告）日：2004-08-12

  A compound of the formula (I): R1-NH-X-Y-Z (I) wherein R1 is acyl; X is a bivalent residue derived from optionally substituted thiazole; Y is a bond, lower alkylene or -COHN-; and Z is a groupe of the formulae (II) or (III) wherein R2 is a specified substituent or a pharmaceutically acceptable salt thereof useful as a vascular adhesion protein-1 (VAP-1) inhibitor for preventing or treating a VAP-1associated disease, especially macular edema.

  一种化合物的分子式（I）：R1-NH-X-Y-Z（I），其中R1为酰基；X为可选取代噻唑衍生的双价残基；Y为键，较低的烷基或-COHN-；Z为分子式（II）或（III）中的基团，其中R2为特定的取代基或其药用可接受的盐，用作预防或治疗与血管粘附蛋白-1（VAP-1）相关的疾病的VAP-1抑制剂，特别是黄斑水肿。
• A highly enantioselective chemoenzymatic synthesis of syn-3-amino-2-hydroxy esters: key intermediates for taxol side chain and phenylnorstatine
  作者：J. Augusto R. Rodrigues、Humberto M.S. Milagre、Cíntia D.F. Milagre、Paulo J.S. Moran

  DOI：10.1016/j.tetasy.2005.08.015

  日期：2005.9

  Starting from the bromination of α-ketoesters to obtain 3-bromo-2-oxoalkanoates and bioreduction with Saccharomyces cerevisiae entrapped in calcium alginate pellets with double gel layers, syn-(2R,3S)-β-bromo-α-hydroxy esters were obtained regioselectively in high yields and high ee. These chiral bromohydrins were cyclized to epoxides that were transformed into oxazolidines and finally opened by acidic

  从α-酮酸酯的溴化反应开始，获得3-溴-2-氧代链烷酸酯，并用包埋在具有双层凝胶层的藻酸钙沉淀中的酿酒酵母进行生物还原，合成了顺式-（2 R，3 S）-β-溴-α-羟基酯以高产率和高ee区域选择性地获得。这些手性溴醇被环化成环氧化物，然后被转化为恶唑烷，最后通过酸性水解打开，从而以高总收率和高ee产率得到合成-（2 S，3 S）-β-氨基-α-羟基酯。在反应过程中，所有中间体的对映体过量均得以维持。
• Dynamic Kinetic Asymmetric Transformations of β-Stereogenic α-Ketoesters by Direct Aldolization
  作者：Michael T. Corbett、Jeffrey S. Johnson

  DOI：10.1002/anie.201306873

  日期：2014.1.3

  Dynamic kinetic asymmetric transformations (DyKAT) of racemic β‐bromo‐α‐keto esters by direct aldolization of nitromethane and acetone provide access to fully substituted α‐glycolic acid derivatives bearing a β‐stereocenter. The aldol adducts are obtained in excellent yield with high relative and absolute stereocontrol under mild reaction conditions. Mechanistic studies determined that the reactions

  通过硝基甲烷和丙酮的直接醛醇化，外消旋 β-溴-α-酮酯的动态动力学不对称转化 (DyKAT) 提供了获得带有 β-立体中心的完全取代的 α-乙醇酸衍生物的途径。在温和的反应条件下，醛醇加合物以极好的收率获得，具有较高的相对和绝对立体控制。机理研究表明，该反应是在 DyKAT I 型歧管下通过简单的催化剂介导的 β-溴-α-酮酯外消旋化进行的。
• Diastereoselective Organocatalytic Addition of α-Angelica Lactone to β-Halo-α-ketoesters
  作者：Jessica A. Griswold、Matthew A. Horwitz、Leslie V. Leiva、Jeffrey S. Johnson

  DOI：10.1021/acs.joc.6b03059

  日期：2017.2.17

  A quinidine-catalyzed diastereoselective addition of α-angelica lactone to β-halo-α-ketoesters is reported. The α-angelica lactone displays unusual regioselectivity in this reaction, acting as a nucleophile at the α-position to provide fully substituted glycolic esters with three contiguous stereocenters. Subsequent diastereoselective hydrogenation provides an additional stereocenter within the lactone

  据报道，奎尼丁对β-卤代-α-酮酸酯的α-当归内酯具有非对映选择性。α-当归内酯在该反应中表现出异常的区域选择性，在α-位上充当亲核试剂，以提供具有三个连续的立体中心的完全取代的乙醇酸酯。随后的非对映选择性氢化在内酯内提供了另外的立体中心。