(E)-2-氧代-4-苯基-3-丁烯酸 | 1914-59-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: (E)-2-氧代-4-苯基-3-丁烯酸
• 英文名称: (E)-2-oxo-4-phenyl-3-butenoic acid
• 英文别名: (E)-2-oxo-4-phenylbut-3-enoic acid；(E)-benzylidene pyruvic acid；benzylidenepyruvic acid
• CAS: 1914-59-6
• 化学式: C₁₀H₈O₃
• 分子量: 176.172
• InChiKey: YQOUMBVFEWZLME-VOTSOKGWSA-N

物化性质

• 熔点：
  57 °C
• 沸点：
  319.7±25.0 °C(Predicted)
• 密度：
  1.270±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  54.4
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• 储存条件：
  2-8°C

反应信息

• 作为反应物：
  描述：

  (E)-2-氧代-4-苯基-3-丁烯酸 在 palladium on activated charcoal 吡啶 、 盐酸 、 氢氧化钾 、 硫酸 、 氢气 、 sodium hydride 、 对甲苯磺酸 、 三乙胺 作用下， 以 1,4-二氧六环 、 乙醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 、 异丙醇 、 苯 为溶剂， 50.0 ℃ 、303.98 kPa 条件下， 反应 79.5h， 生成 盐酸替莫普利
  参考文献：
  名称：

  Angiotensin-converting enzyme inhibitors. Perhydro-1,4-thiazepin-5-one derivatives

  摘要：

  alpha-[6-[[(S)-1-(Ethoxycarbonyl)-3-phenylpropyl]amino]-5-oxoperhydro -1,4-thiazepin-4-yl]acetic acids (monoester monoacids) and their dicarboxylic acids having the hydrophobic substituents at the 2- or 3-position of the thiazepinone ring were prepared and assayed for angiotensin-converting enzyme (ACE) inhibitory activity. The dicarboxylic acids having the pseudoequatorial amino groups at the 6-position and the pseudoequatorial hydrophobic substituents at the 2- or 3-position of the chair conformation of the thiazepinone ring had potent in vitro inhibitory activity. The monoester monoacids having the hydrophobic substituents at the 2-position suppressed pressor response to angiotensin I for a longer duration than those having the substituents at the 3-position when administered orally. The structure-activity relationship was studied by conformational energy calculations of the thiazepinone ring.

  DOI：

  10.1021/jm00394a009
• 作为产物：
  描述：

  potassium 4-phenyl-2-oxo-but-3-enoate 在 盐酸 作用下， 以 水 为溶剂， 以84%的产率得到(E)-2-氧代-4-苯基-3-丁烯酸
  参考文献：
  名称：

  Direct Asymmetric Hydrogenation of 2-Oxo-4-arylbut-3-enoic Acids

  摘要：

  A challenging direct asymmetric hydrogenation of (E)-2-oxo-4-arylbut-3-enoic acids to give 2-hydroxy-4-arylbutanoic acids (85.4-91.8% ee) was achieved with a Ru catalyst based on SunPhos as the chiral ligand. Further investigation of the reaction revealed that partial isomerization of 2-hydroxy-4-arylbutenoic acids was involved in the hydrogenation process. Employing the reaction conditions to the hydrogenation of 2-oxo-4-phenylbutanoic acid resulted in better enantioselectivity (91.8% ee) and efficiency (TON = 2000, TOF = 200 h(-1)), which offers a useful method for the synthesis of a common intermediate for ACE inhibitors.

  DOI：

  10.1021/jo101084t

文献信息

• Polyfunctional ()-2-hydroxycarboxylic acids by reduction of 2-oxo acids with hydrogen gas or formate and resting cells of proteus vulgaris
  作者：Anita Schummer、Hongtao Yu、Helmut Simon

  DOI：10.1016/s0040-4020(01)86506-6

  日期：1991.11

  Various ()-2-hydroxy acids such as ()-2-hydroxy-3-enoic-, 3,5-dienoic-, 4-oxo-, ()-3-hydroxy and some others were prepared on a scale up to 0.12 mol by biocatalytic reduction of the corresponding 2-oxo acids with P. vulgaris and hydrogen gas and/or formate as electron donors. With the exception of the 2-hydroxy-4-oxo acids it could be proved that the enantiomeric excess is > 97%. For the 4-oxo derivatives

  各种（）-2-羟基酸如（）-2-羟基-3-烯酸，3,5-二烯酸，4-氧代，（）-3-羟基等，其制备规模可达到通过以寻常的毕赤酵母和氢气和/或甲酸作为电子给体，对相应的2-氧代酸进行生物催化还原，可得到0.12摩尔。除2-羟基-4-氧代酸外，可以证明对映体过量> 97％。对于4-氧代衍生物，可以假定该对映体过量。分离出的产物的产率很高，因为它们是从相当少量的生物催化剂中分离出来的，并且缓冲液的浓度很低，获得的产物浓度在0.1–0.24 M的范围内。在15–20小时内形成1 mmol的产品，约20–40 mg（干重）寻常型毕赤酵母 单元格是必需的。
• Access to Chiral 2,5-Pyrrolidinyl Dispirooxindoles via Dinuclear Zinc-Catalyzed Asymmetric Cascade Reactions
  作者：Xiao-Chao Yang、Meng-Meng Liu、François Mathey、Hua Yang、Yuan-Zhao Hua、Min-Can Wang

  DOI：10.1021/acs.joc.9b00645

  日期：2019.6.21

  A series of new nonsymmetric semi-azacrown ether ligands were developed and applied to the asymmetric Michael/cyclic keto-imine formation/Friedel–Crafts alkylation reactions of 3-amino oxindole hydrochlorides and β,γ-unsaturated α-keto amides. A diversity of 2,5-pyrrolidinyl dispirooxindoles containing two nonadjacent spiro-quaternary stereocenters were obtained in excellent diastereoselectivities

  开发了一系列新的非对称半氮杂烷基醚配体，并将其应用于3-氨基羟吲哚盐酸盐与β，γ-不饱和α-酮酰胺的不对称Michael /环状酮亚胺形成/ Friedel-Crafts烷基化反应。以优异的非对映选择性和中等至出色的对映选择性（高达95％ee）获得了包含两个不相邻的螺-季四立体中心的2,5-吡咯烷基二螺氧基辛多酮。提出了一个可能的催化循环来解释不对称感应的起源。
• N-Heterocyclic Carbene-Catalyzed Umpolung of Alkynyl 1,2-Diketones
  作者：Xiangwen Kong、Guoxiang Zhang、Shuang Yang、Xiaozhi Liu、Xinqiang Fang

  DOI：10.1002/adsc.201700700

  日期：2017.8.17

  umpolung of alkynyl 1,2‐diketones via N‐heterocyclic carbene (NHC) catalysis was achieved for the first time, allowing the rapid access to a large variety of synthetically and pharmaceutically important α‐pyrones under very mild conditions. A completely new NHC‐catalyzed umpolung pattern involving an O‐acylated allenolate as the key intermediate was proposed. Moreover, an unprecedented reaction pathway

  首次通过N杂环卡宾（NHC）催化实现炔基1,2-二酮的酯化反应，从而可以在非常温和的条件下快速获得多种合成和药学上重要的α-吡喃酮。提出了一种全新的NHC催化的mpolung模式，其中包含O-酰化的烯丙基酯作为关键中间体。此外，据推测，以一系列的基团迁移和新的键形成为特征的空前反应路径证明了产物的形成。
• Asymmetric endoselective [4+2] heterocycloadditions of styrene dienophiles with chiral benzylidenepyruvic esters. Total synthesis of (−)-O-dimethylsugiresinol
  作者：Gilles Dujardin、Mickaël Maudet、Eric Brown

  DOI：10.1016/s0040-4039(97)00144-5

  日期：1997.3

  Eu(fod)3 catalyzed [4+2] heterocycloadditions of para-methoxystyrene 7 with esters 8a-f of benzylidenepyruvic acids (deriving from various chiral alcohols) furnished endo adducts 9a-f with variable diastereoselective ratios (from to ). Interestingly, the benzylidenepyruvic esters 8g and 8h, deriving from a new chiral vector, the α-O-silyl ether 6 of (D)-(−)-erythronolactone 5, gave the corresponding

  铕（FOD）3催化的[4 + 2]的heterocycloadditions第-methoxystyrene 7与酯8A-F的benzylidenepyruvic酸（来自各种手性醇导出）家具内加合物9A-F具有可变非对映选择性比（从至）。有趣的是，benzylidenepyruvic酯8克和8H，从一个新的手性载体，所述导出α - ø -甲硅烷基醚6（ - ） - - （d）的erythronolactone 5，得到相应的内切加合物9克和9H非对映选择性高（）的化合物。加合物9h被用作“天然”（-）-二甲基sugiresinol（1b）的五步合成中的前体。
• Tandem <i>N</i>-Alkylation/Vinylogous Aldol Reaction of β,γ-Alkenyl α-Iminoester
  作者：Hirotaka Tanaka、Isao Mizota、Makoto Shimizu

  DOI：10.1021/ol5007983

  日期：2014.4.18

  This report describes a highly regioselective tandem N-alkylation/vinylogous aldol reaction of β,γ-alkenyl α-iminoesters. The sulfur group improves the regioselectivity of the directed vinylogous aldol reaction, providing a new synthetic method of 3-amino-2-pyrones.

  该报告描述了β，γ-烯基α-亚氨基酯的高度区域选择性的串联N-烷基化/长春醛醇醛缩合反应。硫基团改善了定向乙烯基醇醛醇缩醛反应的区域选择性，提供了3-氨基-2-吡喃酮的新合成方法。