2-(ethoxycarbonyl)pent-4-enoic acid | 2985-38-8

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 2-(ethoxycarbonyl)pent-4-enoic acid
• 英文别名: 2-Ethoxycarbonylpent-4-enoic acid
• CAS: 2985-38-8
• 化学式: C₈H₁₂O₄
• 分子量: 172.181
• InChiKey: GRVQJOITHBBBNR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  12
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  63.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-(ethoxycarbonyl)pent-4-enoic acid 在 咪唑 作用下， 以 neat (no solvent) 为溶剂， 反应 0.07h， 以97%的产率得到4-戊烯酸乙酯
  参考文献：
  名称：

  An improved solvent-free system for the microwave-assisted decarboxylation of malonate derivatives based on the use of imidazole

  摘要：

  A comparative study of the thermal and microwave-assisted decarboxylation of a series of mono- and disubstituted monohydrolyzed malonate derivatives has been carried out. It has been found out that in both circumstances the use of imidazole has a profound effect on the success of the reaction. In general terms the assistance of microwave irradiation accelerates the decarboxylation process significantly and, at the same time, permits the use of minored temperatures with respect to the thermal via. It has been also found that both the thermal and the microwave-assisted transformation can be developed under solvent-free conditions. (C) 2015 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2015.09.012
• 作为产物：
  描述：

  烯丙基丙二酸二乙酯 在 potassium hydroxide 作用下， 以 乙醇 、 水 为溶剂， 以71%的产率得到2-(ethoxycarbonyl)pent-4-enoic acid
  参考文献：
  名称：

  与取代的丙二酸半肟酯的脱羧曼尼希反应

  摘要：

  亚胺与取代的丙二酸半含氧酸酯（SMAHOs）之间的脱羧曼尼希反应已使用1,4-二氮杂双环[2.2.2]辛烷（DABCO）作为有机催化剂进行了开发。简单的反应条件下进行反应并耐受宽范围的底物，得到一般访问β 2,3 -aminoesters，顺式非对映体是主要的。还开发了一种替代性的多组分方案，以提高该工艺的总体生态兼容性。

  DOI：

  10.1021/acs.joc.0c02895

文献信息

• Dependence of product on catalyst in the transition-metal-catalysed decomposition of ethyl 2-allyl-4-diazoacetoacetate
  作者：Shlomo Bien、Arie Gillon、Sol Kohen

  DOI：10.1039/p19760000489

  日期：——

  formation of the epimeric ethyl 2-oxobicyclo[3.1.0]hexane-3-carboxylates (2a and b) and 4-allyl-5-ethoxyfuran-3(2H)-one (3) in the thermal decomposition of ethyl 2-allyl-4-diazoacetoacetate has been observed. The decomposition could be controlled by use of transition metal catalysts: highly selective formation of (2) or (3) could be achieved by appropriate choice of catalyst.

  在乙基2的热分解中竞争性形成差向异构的2-氧代双环[3.1.0]己烷-3-羧酸乙酯（2a和b）和4-烯丙基-5-乙氧基呋喃-3（2 H）-一（3）。已经观察到-烯丙基-4-重氮乙酰乙酸酯。分解可以通过使用过渡金属催化剂来控制：（2）或（3）高度选择性的形成可以通过催化剂的适当选择来实现。
• Preparation of mono-substituted malonic acid half oxyesters (SMAHOs)
  作者：Tania Xavier、Sylvie Condon、Christophe Pichon、Erwan Le Gall、Marc Presset

  DOI：10.3762/bjoc.17.135

  日期：——

  The use of mono-substituted malonic acid half oxyesters (SMAHOs) has been hampered by the sporadic references describing their preparation. An evaluation of different approaches has been achieved, allowing to define the best strategies to introduce diversity on both the malonic position and the ester function. A classical alkylation step of a malonate by an alkyl halide followed by a monosaponification

  描述其制备的零星参考文献阻碍了单取代丙二酸半氧化酯 (SMAHO) 的使用。已经实现了对不同方法的评估，允许定义在丙二酸位置和酯功能上引入多样性的最佳策略。用烷基卤化物对丙二酸酯进行经典的烷基化步骤，然后进行单皂化，可以得到在丙二酸位置带有不同取代基的试剂，包括功能化衍生物。另一方面，取代丙二酸衍生物的单酯化步骤的开发被证明是酯功能多样性的最佳入口，而不是使用中间体 Meldrum 酸。这两种转换的特点是简单高效，
• Synthesis of 5-[(Pentafluorosulfanyl)methyl]-γ-butyrolactones via a Silver-Promoted Intramolecular Cyclization Reaction
  作者：Majdouline Roudias、Audrey Gilbert、Jean-François Paquin

  DOI：10.1002/ejoc.201901163

  日期：2019.10.24

  The synthesis of 5‐[(pentafluorosulfanyl)methyl]‐γ‐butyrolactones bearing different substituents at position 3 or 4 is reported. A silver‐promoted intramolecular cyclization of substituted 4‐chloro‐5‐(pentafluorosulfanyl)pentanoic acids allows the preparation of substituted SF5‐containing γ‐butyrolactones in up to 96 % yield.

  报道了在3或4位带有不同取代基的5-[[（五氟硫烷基）甲基]-γ-丁内酯的合成。银促进的取代的4-氯-5-（五氟硫烷基）戊酸的分子内环化反应可制备取代的含SF 5的γ-丁内酯，收率高达96％。
• [EN] MACROCYCLIC SPIROCARBAMATE DERIVATIVES AS FACTOR XIA INHIBITORS, PHARMACEUTICALLY ACCEPTABLE COMPOSITIONS AND THEIR USE<br/>[FR] DÉRIVÉ SPIROCARBAMATE MACROCYCLIQUE COMME INHIBITEURS DU FACTEUR XIA, COMPOSITIONS PHARMACEUTIQUEMENT ACCEPTABLES ET LEUR UTILISATION
  申请人：MERCK SHARP & DOHME

  公开号：WO2017074833A1

  公开（公告）日：2017-05-04

  The present invention provides a compound of Formula (I) and stereoisomers thereof, and pharmaceutically acceptable salts of said compounds and said stereoisomers, and pharmaceutical compositions thereof, and methods for using said compounds and compositions for treating or preventing thromboses, embolisms, hypercoagulability or fibrotic changes. The compounds are selective Factor XIa inhibitors or dual inhibitors of Factor XIa and plasma kallikrein.

  本发明提供了一种式(I)的化合物及其立体异构体，以及所述化合物和所述立体异构体的药学上可接受的盐，以及其药物组合物，以及使用所述化合物和组合物用于治疗或预防血栓、栓塞、高凝血性或纤维变化的方法。这些化合物是选择性因子XIa抑制剂或因子XIa和血浆激肽原的双重抑制剂。
• Double decarboxylative route to 3-substituted pyrrolidines: Reaction of monoalkyl malonates and related carboxylic acids with sarcosine and formaldehyde
  作者：Evgeny M. Buev、Anastasia A. Smorodina、Vladimir S. Moshkin、Vyacheslav Y. Sosnovskikh

  DOI：10.1016/j.tetlet.2020.151727

  日期：2020.4

  Three-component reactions of monoalkyl malonates, cyanoacetic acids or 2-ketocarboxylic acids, N-methylglycine, and formaldehyde were developed to rapidly access 3-substituted pyrrolidines in 17–97% yield. These reactions represent a double decarboxylative domino-sequence promoted by pyrrolidine and involve N-methylazomethine ylide as the reactive intermediate. 2020 Elsevier Ltd. All rights reserved

  开发了丙二酸单烷基酯，氰基乙酸或2-酮羧酸，N-甲基甘氨酸和甲醛的三组分反应，以17-97％的产率快速获得3-取代的吡咯烷。这些反应代表由吡咯烷促进的双脱羧多米诺序列，并且涉及N-甲基偶氮甲亚胺叶立德作为反应性中间体。2020 Elsevier Ltd.保留所有权利。