methyl 2-(2-phenylethyl)-3-oxobutanoate

• 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: methyl 2-(2-phenylethyl)-3-oxobutanoate
• 英文别名: methyl 3-oxo-2-(2-phenylethyl)butanoate；3-oxo-2-phenethyl-pentanoic acid methyl ester
• 化学式: C₁₃H₁₆O₃
• 分子量: 220.268
• InChiKey: XACCBAOLPSUDEG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  16
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 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：

  methyl 2-(2-phenylethyl)-3-oxobutanoate 在 4-乙酰氨基苯磺酰叠氮 、 C₃₉H₆₀N₄O₄ 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 scandium tris(trifluoromethanesulfonate) 作用下， 以 二氯甲烷 、 乙腈 为溶剂， 反应 24.0h， 生成
  参考文献：
  名称：

  酮与α-烷基α-重氮酯的催化不对称同构

  摘要：

  酮与重氮化合物的同源性是合成单碳扩链无环酮或扩环环酮的有用策略。然而，由于较低的反应性和复杂的选择性，无环酮与α-重氮酯的不对称同源性仍然是一个挑战。在此，我们报道了利用手性scan（III）N，N与N -α-烷基α-重氮酯对苯乙酮和相关衍生物的对映选择性催化同源性'-二氧化物为路易斯酸催化剂。该反应提供了高度化学，区域和对映体选择性的途径，用于通过酮的高选择性烷基基团迁移来合成具有全碳季中心的旋光性β-酮酯。此外，环状酮的扩环是在稍微修饰的条件下完成的，从而提供了一系列对映体富集的环状β-酮酯。已经进行了密度泛函理论计算，以阐明可以解释所观察到的区域和对映选择性的反应途径和可能的工作模型。

  DOI：

  10.1021/jacs.0c12683
• 作为产物：
  描述：

  甲基(2Z)-2-亚苄基-3-氧代丁酸酯 在 sodium hydride 、 溶剂黄146 、 锌 作用下， 以 乙醇 、 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 0.17h， 生成 methyl 2-(2-phenylethyl)-3-oxobutanoate
  参考文献：
  名称：

  Zn-AcOH还原体系对供体-受体环丙烷的区域选择性氢解

  摘要：

  开发了一种便捷的低成本方法，即使用Zn-AcOH还原系统进行供体-受体环丙烷的区域选择性开环。该方法的一般特征是通过有效还原具有代表性类型的2-（杂）芳基环丙烷-1,1-二酯以及具有其他类型的吸电子活化基团的供体-受体环丙烷来显示的。此方法可快速获得γ-取代的丙基-1,1-二酯，酮酸酯，氰基酯，氰基酰胺，二腈等，其中许多方法无法通过替代方法轻松获得。通过将合成的化合物转化为有价值的无环和环状化合物（包括与药理相关的咔唑，δ-内酰胺和羟吲哚衍生物），证明了其实用性。

  DOI：

  10.1021/acs.joc.7b01549

文献信息

• DERIVATIVES OF 2-PYRIDIN-2-YL-PYRAZOL-3(2H)-ONE, PREPARATION AND THERAPEUTIC USE THEREOF AS HIF ACTIVATORS
  申请人：ALTENBURGER Jean-Michel

  公开号：US20110294788A1

  公开（公告）日：2011-12-01

  The present invention relates to novel substituted dihydropyrazolone derivatives, to their preparation and to their therapeutic use as activators of the transcription factor HIF.

  本发明涉及新型取代二氢吡唑酮衍生物，其制备以及作为转录因子HIF激活剂的治疗用途。
• Dimethoxyethane as an Alternative Solvent for Schmidt Reactions. Preparation of Homochiral N-(5-Oxazolyl)oxazolidinones from N-Acetoacetyl Derivatives of Oxazolidinones
  作者：Nicanor Gálvez、Marcial Moreno-Mañas、Rosa M. Sebastián、Adelina Vallribera

  DOI：10.1016/0040-4020(95)00989-2

  日期：1996.1

  Dimethoxyethane is an useful solvent for the Schmidt reaction of ketones and β-ketoesters with sodium azide and methanesulfonic acid to afford amides and amidoesters. This solvent is an alternative to the unsafe chlorinated solvents normally used. A β-diketone and several (4S)-N-(2-alkylacctoacetyl)-4-benzyloxazolidin-2-ones afford oxazoles under those conditions.

  二甲氧基乙烷是酮和β-酮​​酸酯与叠氮化钠和甲磺酸进行Schmidt反应以生成酰胺和酰胺基酯的有用溶剂。该溶剂是通常使用的不安全氯化溶剂的替代品。在这些条件下，β-二酮和几个（4S）-N-（2-烷基乙酰乙酰基）-4-苄基恶唑烷-2-酮可提供恶唑。
• BACTERIAL EFFLUX PUMP INHIBITORS
  申请人：Rutgers, The State University of New Jersey

  公开号：US20160271081A1

  公开（公告）日：2016-09-22

  Disclosed herein are compounds of formula I: and salts thereof. Also disclosed are compositions comprising of compounds of formula I and methods using compounds of formula I.

  本公开的是式I的化合物及其盐。还公开了包含式I化合物的组合物和使用式I化合物的方法。
• Cyclization of Arylacetoacetates to Indene and Dihydronaphthalene Derivatives in Strong Acids. Evidence for Involvement of Further Protonation of O,O-Diprotonated β-Ketoester, Leading to Enhancement of Cyclization
  作者：Hiroaki Kurouchi、Hiromichi Sugimoto、Yuko Otani、Tomohiko Ohwada

  DOI：10.1021/ja908749u

  日期：2010.1.20

  The chemical features, such as substrate stability, product distribution, and substrate generality, and the reaction mechanism of Bronsted superacid-catalyzed cyclization reactions of aromatic ring-containing acetoacetates (beta-ketoesters) were examined in detail. While two types of carbonyl cyclization are possible, i.e., keto cyclization and ester cyclization, the former was found to take place exclusively. The reaction constitutes an efficient method to synthesize indene and 3,4-dihydronapthalene derivatives. Acid-base titration monitored with C-13 NMR spectroscopy showed that the acetoacetates are fully O-1,O-3-diprotonated at H-0 = -11. While the five-membered ring cyclization of the arylacetoacetates proceeded slowly at H-0 = -11, a linear increase in the rate of the cyclization was found with increasing acidity in the high acidity region of H-0 = -11.8 to -13.3. Therefore, the O-1,O-3-diprotonated acetoacetates exhibited some cyclizing reactivity, but they are not the reactive intermediates responsible for the acceleration of the cyclization in the high acidity region. The reactive cationic species might be formed by further protonation (or protosolvation) of the O-1,O-3-diprotonated acetoacetates; i.e., they may be tricationic species. Thermochemical data on the acid-catalyzed cyclization of the arylacetoacetates showed that the activation energy is decreased significantly as compared with that of the related acid-catalyzed cyclization reaction of a compound bearing a single functional group, such as a ketone. These findings indicate that intervention of the trication contributes to the activation of the cyclization of arylacetoacetates in strong acid, and the electron-withdrawing nature of the O-protonated ester functionality significantly increases the electrophilicity of the ketone moiety.
• METHOD FOR PURIFYING PYRUVIC ACID COMPOUNDS
  申请人：SUMITOMO CHEMICAL COMPANY LIMITED

  公开号：EP0937703B1

  公开（公告）日：2003-05-21