2-乙酰基-4-氧代-4-苯基丁酸甲酯 | 75519-84-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 2-乙酰基-4-氧代-4-苯基丁酸甲酯
• 英文名称: methyl 2-acetyl-4-oxo-4-phenylbutanoate
• CAS: 75519-84-5
• 化学式: C₁₃H₁₄O₄
• 分子量: 234.252
• InChiKey: SPVWGRVVEKVVRD-UHFFFAOYSA-N

物化性质

• 沸点：
  379.8±32.0 °C(Predicted)
• 密度：
  1.145±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  17
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  60.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-乙酰基-4-氧代-4-苯基丁酸甲酯 以95%的产率得到
  参考文献：
  名称：

  GRAZIANO M. L.; IESCE M. R.; SCARPATI R., J. CHEM. SOC. PERKIN TRANS., PART 1, 1980, NO 9, 1955-1959

  摘要：

  DOI：
• 作为产物：
  描述：

  [4-[(E)-2-(4-phenylphenyl)ethenyl]phenyl]methyl 2-acetyl-4-oxo-4-phenylbutanoate 在 甲醇 、 TEA 作用下， 以 四氢呋喃 为溶剂， 反应 1.5h， 以91%的产率得到2-乙酰基-4-氧代-4-苯基丁酸甲酯
  参考文献：
  名称：

  Precipiton strategies applied to the isolation of α-substituted β-ketoesters

  摘要：

  Diaryl alkene 1Z is a 'precipiton', a protecting group that allows reaction products to be isolated by simple filtration. Here we illustrate the use of this protecting group for the preparation and isolation, without distillation or chromatography, of pure cc-substituted beta -ketoesters. The precipiton 1Z was prepared in 43% overall yield. It is anticipated that development of precipiton-based syntheses will provide a new alternative for automated reaction product isolation that may be useful for bench-scale and process-scale chemical preparations. (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(01)00726-2

文献信息

• THERAPEUTIC AGENT FOR DIABETES
  申请人：Japan Tobacco Inc.

  公开号：EP0885869A1

  公开（公告）日：1998-12-23

  A therapeutic agent for diabetes, which comprises a compound of the formula [I] wherein Xis a group of the formula wherein R4 and R5 are the same or different and each is a hydrogen atom, an optionally substituted alkyl having 1 to 5 carbon atoms and the like, and R6 is a hydrogen atom or an amino-protecting group; R1 is an optionally substituted alkyl having 1 to 5 carbon atoms, an optionally substituted alkenyl having 2 to 6 carbon atoms and the like, R2 is a hydrogen atom, an optionally substituted alkyl having 1 to 5 carbon atoms and the like, R2' is a hydrogen atom, and R3 is an optionally substituted alkyl having 1 to 5 carbon atoms and the like, a prodrug thereof, a pharmaceutically acceptable salt thereof, a hydrate thereof and a solvate thereof. The compound of the present invention shows superior blood sugar decreasing action on the state of hyperglycemia, but does not affect the blood sugar when it is in the normal range or in the hypoglycemic state, which means that it is free of serious side effects such as hypoglycemia. Therefore, the compound of the present invention is useful as a therapeutic drug for diabetes and also useful as a preventive of the chronic complications of diabetes.

  用于治疗糖尿病的疗法剂，包括公式[I]的化合物 其中 X是公式的组 其中R4和R5相同或不同，每个都是氢原子，可选地取代的具有1至5个碳原子的烷基等等，R6是氢原子或氨基保护基团；R1是具有1至5个碳原子的可选取代烷基，具有2至6个碳原子的可选取代烯基等等，R2是氢原子，具有1至5个碳原子的可选取代烷基等等，R2'是氢原子，R3是具有1至5个碳原子的可选取代烷基等等，其前药，药用可接受盐，水合物和溶剂化物。 本发明的化合物在血糖升高状态下表现出优越的降血糖作用，但在正常范围或低血糖状态下不影响血糖，这意味着它没有低血糖等严重副作用。因此，本发明的化合物作为治疗糖尿病的药物很有用，也用作预防糖尿病慢性并发症。
• Enantioselective Synthesis of Nitrogen–Nitrogen Biaryl Atropisomers via Copper-Catalyzed Friedel–Crafts Alkylation Reaction
  作者：Xiao-Mei Wang、Peng Zhang、Qi Xu、Chang-Qiu Guo、De-Bing Zhang、Chuan-Jun Lu、Ren-Rong Liu

  DOI：10.1021/jacs.1c07741

  日期：2021.9.22

  bioactive compounds. However, the atropisomerism arising from a restricted rotation around an N–N bond is largely overlooked. Here, we describe a method to access the first enantioselective synthesis of N–N biaryl atropisomers via a Cu-bisoxazoline-catalyzed Friedel–Crafts alkylation reaction. A wide range of axially chiral N–N bisazaheterocycle compounds were efficiently prepared in high yields with

  含有基序的氮-氮键在天然产物和生物活性化合物中无处不在。然而，由围绕 N-N 键的受限旋转引起的阻转异构在很大程度上被忽视了。在这里，我们描述了一种通过 Cu-双恶唑啉催化的 Friedel-Crafts 烷基化反应对 N-N 联芳基阻转异构体进行首次对映选择性合成的方法。通过去对称化和动力学拆分，以高产率高效制备了多种轴向手性 N-N 双氮杂杂环化合物，并具有优异的对映选择性。加热实验表明轴向手性双氮杂杂环产物具有高旋转势垒。
• Copper-Catalyzed Decarboxylative Oxyalkylation of Alkynyl Carboxylic Acids: Synthesis of γ-Diketones and γ-Ketonitriles
  作者：Yi Li、Jia-Qi Shang、Xiang-Xiang Wang、Wen-Jin Xia、Tao Yang、Yangchun Xin、Ya-Min Li

  DOI：10.1021/acs.orglett.9b00520

  日期：2019.4.5

  A novel copper-catalyzed decarboxylative oxyalkylation of alkynyl carboxylic acids with ketones and alkylnitriles via direct C(sp3)–H bond functionalization to construct new C–C bonds and C–O double bonds was developed. This transformation is featured by wide functional group compatibility and the use of readily available reagents, thus affording a general approach to γ-diketones and γ-ketonitriles

  通过直接的C（sp 3）-H键官能化来构建新的C-C键和C-O双键的新型铜催化的炔基羧酸与酮和烷基腈的脱羧氧化烷基化反应得到了发展。这种转变的特征是广泛的官能团相容性和易于使用的试剂的使用，从而为γ-二酮和γ-酮腈提供了一种通用方法。提出了一种可能的机制。
• Cerium-Catalyzed, Aerobic Oxidative Synthesis of 1,2-Dioxane Derivatives from Styrene and Their Fragmentation into 1,4-Dicarbonyl Compounds
  作者：Michael Rössle、Thomas Werner、Wolfgang Frey、Jens Christoffers

  DOI：10.1002/ejoc.200500487

  日期：2005.12

  1,4-Diketones were prepared by cerium-catalyzed oxidative coupling of styrene with molecular oxygen and 1,3-dicarbonyl compounds. This two-step sequence was performed as a one-pot procedure without isolation of the intermediate products. The first step is a metal-catalyzed radical reaction yielding 3-hydroxy-1,2-dioxane derivatives being the cyclotautomers of initially formed 4-hydroperoxy ketones

  1,4-二酮是通过铈催化的苯乙烯与分子氧和1,3-二羰基化合物的氧化偶联制备的。这个两步序列是作为一锅法进行的，没有分离中间产物。第一步是金属催化的自由基反应，产生 3-羟基-1,2-二恶烷衍生物，即最初形成的 4-氢过氧酮的环互变异构体。在该序列的第二步中，这些内过氧化物通过 Kornblum-DeLaMare 断裂与 AcCl-吡啶转化为 1,4-二羰基基序。几种中间体 1,2-二恶烷衍生物可以被分离出来，并通过 X 射线晶体学进行结构表征。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
• Highly Atroposelective Synthesis of Arylpyrroles by Catalytic Asymmetric Paal–Knorr Reaction
  作者：Lei Zhang、Jian Zhang、Ji Ma、Dao-Juan Cheng、Bin Tan

  DOI：10.1021/jacs.6b09634

  日期：2017.2.8

  efficient method for accessing enantiomerically pure arylpyrroles by utilizing the catalytic asymmetric Paal-Knorr reaction has been developed for the first time. A wide range of axially chiral arylpyrroles were obtained in high yields with good to excellent enantioselectivities. The key to success is the use of the combined-acid catalytic system involving a Lewis acid and a chiral phosphoric acid for

  首次开发了一种利用催化不对称 Paal-Knorr 反应获得对映体纯芳基吡咯的通用且有效的方法。以高产率获得了范围广泛的轴向手性芳基吡咯，具有良好到出色的对映选择性。成功的关键是使用包含路易斯酸和手性磷酸的联合酸催化系统来实现有效的对映控制。值得注意的是，在上述不对称反应中观察到了意想不到的对映选择性的溶剂依赖性反转。