2-cyano-3-(furan-2-yl)propionic acid ethyl ester

• 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-cyano-3-(furan-2-yl)propionic acid ethyl ester
• 英文别名: 1-cyano-1-ethoxycarbonyl-2-(2'-furyl)ethane；ethyl 2-cyano-3-(furan-2-yl) propanoate；ethyl 2-cyano-3-(furan-2-yl)propanoate
• 化学式: C₁₀H₁₁NO₃
• 分子量: 193.202
• InChiKey: CFSDPGZURGRPRB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  14
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  63.2
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  ethyl (E)-2-cyano-3-(2-furyl)-2-propenoate 在 indium(III) chloride 、 sodium tetrahydroborate 作用下， 以 乙腈 为溶剂， 反应 5.0h， 以87%的产率得到2-cyano-3-(furan-2-yl)propionic acid ethyl ester
  参考文献：
  名称：

  InCl 3 -NaBH 4试剂系统还原活化的共轭烯烃

  摘要：

  乙腈中催化量的氯化铟（III）和硼氢化钠的组合可选择性降低共轭烯烃（如α，α-二氰基烯烃，α，β-不饱和腈，氰基酯，氰基膦酸酯和二羧酸酯）中的碳-碳双键。但是，减少查耳酮几乎没有什么不同。如果将反应混合物用H 2 O淬灭，则它们会还原为饱和酮和醇的混合物，而用MeOH淬灭只会产生饱和醇。

  DOI：

  10.1016/j.tet.2003.08.022

文献信息

• Base-Promoted Cascade Approach for the Preparation of Reduced Knoevenagel Adducts Using Hantzsch Esters as Reducing Agent in Water
  作者：Zhouyu Wang、Tao He、Ronghua Shi、Yimou Gong、Guangyou Jiang、Ming Liu、Shan Qian

  DOI：10.1055/s-0035-1562099

  日期：——

  condensation–reduction approach, which was carried out in water, has been reported. Using Hantzsch esters as reducing agent, under the promotion of base, a variety of reduced Knoevenagel adducts could be easily prepared by direct alkyl­ation of malononitrile, ethyl 2-cyanoacetate, and 2-(4-nitrophenyl)acetonitrile, respectively. Meanwhile, a gram-scale synthesis of the protocol was also realized with excellent

  已经报道了在水中进行的级联 Knoevenagel 缩合还原方法。以Hantzsch酯为还原剂，在碱的促进下，丙二腈、2-氰基乙酸乙酯和2-(4-硝基苯基)乙腈分别直接烷基化反应，可以很容易地制备出多种还原的Knoevenagel加合物。同时，该协议的克级合成也以优异的分离产率实现。
• Room Temperature, Reductive Alkylation of Activated Methylene Compounds: Carbon–Carbon Bond Formation Driven by the Rhodium-Catalyzed Water–Gas Shift Reaction
  作者：Scott E. Denmark、Malek Y. S. Ibrahim、Andrea Ambrosi

  DOI：10.1021/acscatal.6b03183

  日期：2017.1.6

  The rhodium-catalyzed water–gas shift reaction has been demonstrated to drive the reductive alkylation of several classes of activated methylene compounds at room temperature. Under catalysis by rhodium trichloride (2–3 mol %), carbon monoxide (10 bar), water (2–50 equiv), and triethylamine (2.5–7 equiv), the scope has been successfully expanded to cover a wide range of alkylating agents, including

  铑催化的水煤气变换反应已被证明可在室温下驱动几类活化的亚甲基化合物的还原烷基化反应。在三氯化铑（2-3％摩尔），一氧化碳（10 bar），水（2-50当量）和三乙胺（2.5-7当量）的催化下，其范围已成功扩大，涵盖了广泛的烷基化反应中等至高产率的包括脂肪族和芳香族醛以及环状酮在内的助剂。在某些方面，该方法与现有的还原烷基化方案相当，并且在某些方面超过了该方法。
• Catalyst-free chemoselective reduction of the carbon–carbon double bond in conjugated alkenes with Hantzsch esters in water
  作者：Qi He、Zhihong Xu、Dehong Jiang、Wensi Ai、Ronghua Shi、Shan Qian、Zhouyu Wang

  DOI：10.1039/c3ra48072k

  日期：——

  A simple, efficient and green protocol for chemoselective reduction of carbon–carbon double bond in conjugated alkenes with Hantzsch esters is described. Without any additional catalysts, a series of conjugated alkenes with strong electron-withdrawing groups were reduced in water with excellent yield. Functional groups such as nitrile, ester, nitro, fluoro, chloro, bromo, furanyl and benzyl are all

  描述了一种简单，有效和绿色的方案，用于通过Hantzsch酯化学共轭还原烯烃中的碳-碳双键。在没有任何其他催化剂的情况下，一系列具有强吸电子基团的共轭烯烃在水中被还原，收率极佳。所用的反应条件均能耐受诸如腈，酯，硝基，氟，氯，溴，呋喃基和苄基之类的官能团。
• 3-Butyl-1-methylimidazolinium borohydride ([bmim][BH4])—a novel reducing agent for the selective reduction of carbon–carbon double bonds in activated conjugated alkenes
  作者：Jiayi Wang、Gonghua Song、Yanqing Peng、Yidong Zhu

  DOI：10.1016/j.tetlet.2008.08.110

  日期：2008.11

  A novel ionic reducing reagent, 3-butyl-1-methylimidazolium borohydride ([bmim][BH4]), was synthesized and successfully used for the selective reduction of carbon–carbon double bonds in conjugated alkenes as well as the α,β-carbon–carbon double bonds in highly activated α,β,γ,δ-unsaturated alkenes. The reagent can be regenerated and reused several times without losing its activity.

  合成了一种新型的离子还原剂，3-丁基-1-甲基咪唑硼氢化物（[bmim] [BH 4 ]），并成功地用于选择性还原共轭烯烃中的碳-碳双键以及α，β-高度活化的α，β，γ，δ不饱和烯烃中的碳碳双键。该试剂可以再生并重复使用几次，而不会失去其活性。
• Use of indium hydride (Cl2InH) for chemoselective reduction of the carboncarbon double bond in conjugated alkenes
  作者：Brindaban C. Ranu、Sampak Samanta

  DOI：10.1016/s0040-4039(02)01668-4

  日期：2002.10

  Indium hydride (Cl2InH) generated in situ from a combination of a catalytic amount of indium(III) chloride and sodium borohydride selectively reduces the carboncarbon double bond in conjugated alkenes such as α,α-dicyano olefins, α,β-unsaturated nitriles, cyano esters, cyanophosphonate, diesters and ketones.

  催化量的氯化铟（III）和硼氢化钠的组合就地生成的氢化铟（Cl 2 InH）有选择地还原共轭烯烃（如α，α-二氰基烯烃，α，β-不饱和腈，氰基酯，氰基膦酸酯，二酯和酮。