ethyl 3-(4-chlorophenyl)-2-cyano-4-nitrobutanoate | 198554-12-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: ethyl 3-(4-chlorophenyl)-2-cyano-4-nitrobutanoate
• CAS: 198554-12-0
• 化学式: C₁₃H₁₃ClN₂O₄
• 分子量: 296.71
• InChiKey: UWKFUGJURDLOFG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  20.0
• 可旋转键数：
  6.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  93.23
• 氢给体数：
  0.0
• 氢受体数：
  5.0

反应信息

• 作为产物：
  描述：

  1-(4-氯苯基)-2-硝基乙烯 、 氰乙酸乙酯 在 1-[2-[Bis[2-[(2,3,4,5,6-pentafluorophenyl)carbamoylamino]ethyl]amino]ethyl]-3-(2,3,4,5,6-pentafluorophenyl)urea 作用下， 以 二甲基亚砜 为溶剂， 反应 3.0h， 以95%的产率得到ethyl 3-(4-chlorophenyl)-2-cyano-4-nitrobutanoate
  参考文献：
  名称：

  Tris-ureas as versatile and highly efficient organocatalysts for Michael addition reactions of nitro-olefins: Mechanistic insight from in-situ diagnostics

  摘要：

  Tris(2-aminoethyl)-amine, TREN based tris-ureas (1a-1d) and tris-thiourea (1e) have been explored towards a wide range of catalytic Michael addition reactions. These tris-ureas, 1a-1d efficiently catalyze the addition reaction of beta-nitro styrenes (2a-2d) with various nucleophiles such as beta-ketoesters (3a-3c), 1,3-dicarbonyl compound (3d), a cyanoester (3e) and a nitroester (3f) under ambient conditions to produce corresponding nitro alkanes in high yields. Pentafluorophenyl attached tris-urea, 1d is found to be the most effective catalyst in the series that yields 78-98% products conversion. In case of the reaction between beta-nitro styrenes and malononitrile (3g) in presence of 1d, 2-amino-5-nitro-4,6-diphenylcyclohex-1-ene-1,3,3-tricarbonitriles are also isolated as a minor product along with the corresponding Michael adduct. The added advantage of bridge-head nitrogen center in tris-urea organocatalysts, 1a-1d has been established by studying analogous benzene platform based tris-ureas (1f, 1g, 1h) in similar experimental conditions. Furthermore, a plausible reaction mechanism has also been established based on in-situ H-1 NMR kinetic studies. (C) 2015 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcata.2015.01.004

文献信息

• Unexpected reactivity of graphene oxide with DBU and DMF
  作者：Rafael Ramírez-Jiménez、Mario Franco、Eduardo Rodrigo、Raquel Sainz、Rafael Ferritto、Al Mokhtar Lamsabhi、José Luis Aceña、M. Belén Cid

  DOI：10.1039/c8ta03529f

  日期：——

  Several nitrogen-containing graphene-derived materials have been obtained using DBU and DMF as nitrogen sources, and further employed as heterogeneous catalysts.

  使用DBU和DMF作为氮源，已经获得了几种含氮石墨烯衍生材料，并进一步作为非均相催化剂。
• Organic amine grafting on mesoporous silica as a hybrid catalyst for heterogeneous three-component one-pot reaction
  作者：Kenichi Komura、Yuta Mishima、Mamoru Koketsu

  DOI：10.1016/j.apcata.2012.08.009

  日期：2012.11

  organic–inorganic hybrid catalyst was prepared by immobilizing 3-methylaminopropyl moiety onto mesoporous silica, MCM-41, and applied for solid base catalyst of three-component one-pot reaction, i.e. Knoevenagel condensation of aldehyde with the active methylene compound to yield an electron deficient alkene which is subjective to be reacted with nitromethane by Michael addition to form tri-substituted

  有机-无机杂化催化剂是通过将3-甲基氨基丙基部分固定在介孔二氧化硅MCM-41上制备的，并用于三组分一锅法反应的固体基础催化剂，即醛与活性亚甲基化合物的Knoevenagel缩合反应得到电子不足的烯烃，其易于通过迈克尔加成与硝基甲烷反应形成三取代的伯硝基化合物。通过粉末XRD，TG-DTA，FT-IR，氮吸附-脱附测量和固态交叉极化幻角旋转（CP / MAS）NMR表征该催化剂，并在三组分一锅法中表现出高催化活性。反应; 但是，可重用性较差。