ethyl (E)-2-diazo-3-oxo-5-phenylpent-4-enoate | 89861-36-9

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: ethyl (E)-2-diazo-3-oxo-5-phenylpent-4-enoate
• 英文别名: (1E,3Z)-4-diazonio-5-ethoxy-5-oxo-1-phenylpenta-1,3-dien-3-olate
• CAS: 89861-36-9
• 化学式: C₁₃H₁₂N₂O₃
• 分子量: 244.25
• InChiKey: PFQZFSNRLVMQJH-CMDGGOBGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  18
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.15
• 拓扑面积：
  45.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  ethyl (E)-2-diazo-3-oxo-5-phenylpent-4-enoate 在 rhodium(II) acetate dimer 、 水 作用下， 生成 ethyl (E)-4-phenylbut-3-enoate
  参考文献：
  名称：

  乙酸铑（II）催化的2-重氮-3-氧杂戊酸4-烯酸酯的反应：生成4-芳基-2-羟基-1-萘甲酸和β，β-不饱和酯的简单途径。4-（二乙基膦酰基）乙酰乙酸乙酯的二价阴离子丙酸酯均烯酸酯当量

  摘要：

  乙酸铑（II）催化的2-重氮-3-氧杂戊-4-烯酸乙酯的分解导致形成4-芳基-2-羟基萘酯或β，γ-不饱和酯。在后者的转化中，4-（二乙基膦酰基）乙酰乙酸酯的二价阴离子起丙酸酯均烯酸酯当量的作用。

  DOI：

  10.1016/s0040-4039(00)94110-8
• 作为产物：
  描述：

  ethyl 2-diazo-3-oxo-5-phenylpent-4-ynoate 在 Lindlar's catalyst 氢气 作用下， 以 正己烷 为溶剂， 反应 1.5h， 生成 ethyl (E)-2-diazo-3-oxo-5-phenylpent-4-enoate
  参考文献：
  名称：

  A new method for the synthesis of 2-cyclopenten-1-one-5-carboxylic ester derivatives via Rh2(OAc)4-mediated intramolecular C–H insertion reaction of 4Z-β-vinyl-α-diazo β-ketoesters

  摘要：

  2-Cyclopenten-1-one-5-carboxylic ester derivatives 14 are synthesized in a four- step-reaction sequence starting from alkynyl aldehydes 9 via 4Z-beta-vinyl-alpha-diazo beta-ketoesters intermediate 8. The synthetic method for 8 is described. When the delta substituent is an alkyl group, Rh(Il)-mediated decomposition of the diazo compounds 8 led to an intramolecular C-H insertion to afford 2-cyclopenten-1-one-5-carboxylic ester derivatives 14 in high yields. When the delta substituent is an aryl group, 2-hydroxynaphthoate 15 is obtained exclusively. In both cases, no Wolff rearrangement product was observed. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2005.05.106

文献信息

• Efficient Kinetic Resolution of Sulfur‐Stereogenic Sulfoximines by Exploiting Cp ^X Rh ^III ‐Catalyzed C−H Functionalization
  作者：Marcus Brauns、Nicolai Cramer

  DOI：10.1002/anie.201904543

  日期：2019.6.24

  atoms are promising motifs in drug discovery. We report an efficient method to access chiral sulfoximines through a C−H functionalization based kinetic resolution. A rhodium(III) complex equipped with a chiral Cpx ligand selectively participates in conjunction with phthaloyl phenylalanine in the C−H activation of just one of the two sulfoximine enantiomers. The intermediate reacts with various diazo compounds

  具有立体生成硫原子的手性亚砜亚胺是药物发现中很有希望的主题。我们报告了一种有效的方法，通过基于C H H官能化的动力学拆分来访问手性亚砜肟。配备了手性Cp x配体的铑（III）络合物选择性地与邻苯二甲酰苯丙氨酸一起参与仅两个磺胺嘧啶对映体之一的CH活化。中间体可与各种重氮化合物反应，从而获得具有合成上有价值的取代模式的手性1,2-苯并噻嗪。以高产率和对映选择性优良，获得两个亚磺酰亚胺和1,2-苯并噻嗪，与小号值最高可达200​​。该方法的实用性通过两种药理相关激酶抑制剂的关键中间体的合成得以说明。
• Enantioselective Synthesis of Chiral‐at‐Sulfur 1,2‐Benzothiazines by Cp^xRh^III‐Catalyzed C−H Functionalization of Sulfoximines
  作者：Yang Sun、Nicolai Cramer

  DOI：10.1002/anie.201810887

  日期：2018.11.19

  attractive structural motifs in drug discovery. A direct catalytic enantioselective method for the synthesis of sulfur‐chiral 1,2‐benzothiazines from readily accessible diaryl sulfoximines is presented. Rhodium(III) complexes equipped with chiral cyclopentadienyl ligands and paired with suitable carboxylic acid additives engage in an enantiodetermining C−H activation directed by the sulfoximine group. Subsequent

  具有立体硫原子的磺胺嘧啶是药物发现中有吸引力的结构基序。提出了一种直接催化对映选择性的方法，该方法是从容易获得的二芳基亚砜亚砜中合成硫-手性1,2-苯并噻嗪。配备了手性环戊二烯基配体并与合适的羧酸添加剂配对的铑（III）络合物参与对映体确定由亚磺酰亚胺基引导的CH活化。随后用大范围的重氮酮捕获罗丹环，可以以良好的产率和对映选择性获得具有合成上高度吸引人的取代模式的S-手性1,2-苯并噻嗪。
• Sc(OTf)3-Catalyzed [3+2]-Cycloaddition of Diazoacetoacetate Enones and N-Aryl Nitrones: Diastereoselective Synthesis of Functionalized Isoxazolidines with Three Contiguous Stereogenic Centers
  作者：Xichen Xu、Yingjun Zhao、Di Wu

  DOI：10.1055/s-0041-1737804

  日期：2022.5

  A catalytic [3+2]-cycloaddition using Sc(OTf)3 as a Lewis acid catalyst is developed. This catalytic 1,3-dipolar cycloaddition dia­stereoselectively transforms diazoacetoacetate enones and N-aryl nitrones into highly functionalized isoxazolidines bearing three contiguous chiral centers. The feasibility of the uncatalyzed 1,3-dipolar cycloaddition is postulated by DFT calculations and substantiated

  开发了使用Sc(OTf) 3作为路易斯酸催化剂的催化[3+2]-环加成反应。这种催化的 1,3-偶极环加成非对映选择性将重氮乙酰乙酸烯酮和N-芳基硝酮转化为具有三个连续手性中心的高度官能化的异恶唑烷。未催化的 1,3-偶极环加成的可行性由 DFT 计算假设并通过实验证实。
• Palladium-Catalyzed Cross-Coupling of Aryl or Vinyl Iodides with Ethyl Diazoacetate
  作者：Cheng Peng、Jiajia Cheng、Jianbo Wang

  DOI：10.1021/ja073010+

  日期：2007.7.1

  Pd(PPh3)(4)-catalyzed reaction between aryl or vinyl iodides and ethyl diazoacetate (EDA) leads to the formation of cross-coupling products in good yields.
• Vinylketene-enamine cyclocondensation: a new access to functionalized phenols
  作者：Didier Collomb、Alain Doutheau

  DOI：10.1016/s0040-4039(97)00034-8

  日期：1997.2

  The cyclocondensation between vinylketenes 2, generated by rhodium acetate catalysed Wolff rearrangement of diazo compounds 1, and enamines 3 led to functionalized phenolic derivatives 5 in moderate to good yields. (C) 1997 Published by Elsevier Science Ltd.