ethyl 2-cyano-3-(2,4-dichlorophenyl)acrylate

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: ethyl 2-cyano-3-(2,4-dichlorophenyl)acrylate
• 英文别名: <2,4-Dichlor-benzyliden>-cyan-essigsaeure-aethylester；2-Cyano-3-(2,4-dichloro-phenyl)-acrylic acid ethyl ester；ethyl 2-cyano-3-(2,4-dichlorophenyl)prop-2-enoate
• 化学式: C₁₂H₉Cl₂NO₂
• mdl: MFCD00178324
• 分子量: 270.115
• InChiKey: HDHAZBAICIKTCX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.166
• 拓扑面积：
  50.1
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  ethyl 2-cyano-3-(2,4-dichlorophenyl)acrylate 在 sodium tetrahydroborate 、 氯化亚砜 、 PPA 、 Polyphosphoric acid (PPA) 、 硫酸 、 magnesium 、 溶剂黄146 作用下， 以 甲醇 、 甲苯 为溶剂， 反应 28.0h， 生成 1-Chloro-3-(2,4-dichloro-phenyl)-indan
  参考文献：
  名称：

  Neuroleptic activity and dopamine-uptake inhibition in 1-piperazino-3-phenylindans

  摘要：

  A series of 1-piperazino-3-phenylindans was synthesized and tested for neuroleptic and thymoleptic activity. Neuroleptic activity was found only in trans racemates and was associated with one of the enantiomers only. The potent and long-acting neuroleptic compound trans-4-[3-(4-fluorophenyl)-6-(trifluoromethyl)indan-1-yl]-1-piperazineethanol (Lu 18-012, tefludazine) was developed by systematic variation of structural components. Thymoleptic activity was optimized, especially with respect to dopamine-uptake inhibition. No geometrical stereoselectivity was found with regard to dopamine-uptake inhibition, but a high enantioselectivity could be demonstrated for both cis and trans racemates. The most potent compounds were 1-piperazino-3-(3,4-dichlorophenyl)indans with IC50 values of about 2nM for inhibition of dopamine uptake.

  DOI：

  10.1021/jm00361a002
• 作为产物：
  描述：

  生成 丁硫醇 、 ethyl 2-cyano-3-(2,4-dichlorophenyl)acrylate
  参考文献：
  名称：

  Equilibrium reactions of n-butanethiol with some conjugated heteroenoid compounds

  摘要：

  2-苯甲酰-1,3-茚酮和含氰基苯甲基马隆酰亚胺、乙基苯甲基氰乙酸酯、苯甲基氰乙酸酰胺和苯甲基氰乙酸苯胺在25°C下与n-丁硫醇在20%乙醇-80% pH 7缓冲液中的反应速率过快，无法通过标准方法测量。平衡常数已经计算，并与Hammett σ和Taft σ*常数相关联。这些和其他与n-丁硫醇在相同实验条件下以可测速率几乎完全反应的双官能团系统的反应差异被归因于苯基对顺式官能团在反向反应中的参与。结果表明，n-丁硫醇通过1,4-机理加成于肉桂酮苯乙酮，讨论了这种亲核试剂与具有扩展共轭体系的类似化合物的反应。

  DOI：

  10.1139/v68-128

文献信息

• DABCO-catalyzed Knoevenagel condensation of aldehydes with ethyl cyanoacetate using hydroxy ionic liquid as a promoter
  作者：Dan Meng、Yongsheng Qiao、Xin Wang、Wei Wen、Sanhu Zhao

  DOI：10.1039/c8ra06506c

  日期：——

  octane (DABCO)-catalyzed Knoevenagel condensation reactions, which showed better catalytic activity compared to other ionic liquid (IL) that had no hydroxyl group attached to the IL scaffold. The effect of hydrogen bond formation between the hydroxyl group of [HyEtPy]Cl and the carbonyl group of aldehyde played an important role in the Knoevenagel condensation reaction. In the [HyEtPy]Cl–H2O–DABCO

  合成并探索了N -(2-Hydroxy-ethyl)-pyridinium chloride ([HyEtPy]Cl) 作为 1,4-二氮杂双环 [2.2.2] 辛烷 (DABCO) 催化的 Knoevenagel 缩合反应的新型促进剂。与没有羟基连接到 IL 支架上的其他离子液体 (IL) 相比的催化活性。[HyEtPy]Cl的羟基与醛的羰基之间形成氢键的作用在Knoevenagel缩合反应中起重要作用。在 [HyEtPy]Cl–H 2在O-DABCO复合体系中，Knoevenagel缩合反应进行得平稳、干净，在所有考察的情况下，相应的Knoevenagel缩合产物均以良好至优异的收率获得。该协议提供了一种通用的溶剂-催化剂系统，具有生态友好、易于处理和离子液体方便重复使用等显着优势。
• One-by-one hydrogenation, cross-coupling reaction, and Knoevenagel condensations catalyzed by PdCl2 and the downstream palladium residue
  作者：Hu Wang、Li Li、Xing-Feng Bai、Wen-Hui Deng、Zhan-Jiang Zheng、Ke-Fang Yang、Li-Wen Xu

  DOI：10.1039/c3gc40991k

  日期：——

  A novel catalyst-economic strategy with a recovered palladium catalyst was successfully applied for multi-task and maximum reuse in different types of one-by-one downstream reactions, from catalytic hydrogenation to Suzuki and Sonogashira-type cross-coupling reactions, Knoevenagel condensations, and trans-Knoevenagel-like condensations.

  一种新型催化剂经济策略，采用回收的钯催化剂，成功应用于多种一一对应的下游反应中，实现了从催化氢化到铃木型、Sonogashira型交叉偶联反应、Knoevenagel缩合反应以及类似trans-Knoevenagel缩合反应的多任务和最大化重复利用。
• A novel and green method for the synthesis of highly substituted isoquinoline derivatives in ionic liquid
  作者：Xiang-Shan Wang、Jian-Rong Wu、Qing Li、Mei-Mei Zhang

  DOI：10.1002/jhet.244

  日期：2009.11

  A series of new highly substituted isoquinoline derivatives was obtained from the reaction of 2‐(1‐substituted piperidin‐4‐ylidene)malononitrile, benzaldehyde and malononitrile or cyanoacetate in ionic liquid at 50°C. This novel procedure was different from the previous method in the synthesis of isoquinoline using pyridine fragment as reactant to construct benzene ring, and as well as had the advantages

  在50°C的温度下，2-（1-取代的哌啶-4-亚甲基）丙二腈，苯甲醛和丙二腈或氰基乙酸酯的反应获得了一系列新的高度取代的异喹啉衍生物。该新方法与以前的方法不同，在于使用吡啶片段作为反应物构建苯环来合成异喹啉，并且具有一锅法，温和且对环境无害的优点。根据进一步的实验结果，提出了一种可能的机理。J.杂环化​​学，（2009）。
• l-Histidine and l-arginine promote Knoevenagel reaction in water
  作者：Abbas Rahmati、Kobra Vakili

  DOI：10.1007/s00726-010-0537-z

  日期：2010.8

  Histidine and arginine were applied to the synthesis of trisubstituted alkenes through a condensation of an aldehyde with an activated CH-acid such as ethyl cyanoacetate, malononitrile, acetyl acetone or ethyl acetoacetate during 5–12 h in water at room temperature.

  组氨酸和精氨酸通过醛与活化的CH-酸（如氰基乙酸乙酯，丙二腈，乙酰丙酮或乙酰乙酸乙酯）在水中在室温下5-12小时的缩合反应，用于三取代烯烃的合成。
• 7-Methyl Trimethoprim Analogues as Inhibitors of the Folate Metabolizing Enzymes
  作者：Aleem Gangjee、Xin Lin、Sherry F. Queener

  DOI：10.1002/jhet.5570400315

  日期：2003.5

  dines 2–10 (Table I) were designed and synthesized as potent and selective inhibitors of Pneumocystis carinii (P. carinii), Toxoplasma gondii (T. gondii) and Mycobacterium avium (M. avium) dihydrofolate reductases (DHFR). The structure of 2–10 incorporates a 7-methyl group to increase the potency of monocyclic trimethoprim (TMP). The target compounds were synthesized by an acid catalyzed condensation

  设计并合成了一系列5-（1-苯乙基）嘧啶2-10（表I），作为卡氏肺孢子虫（P. carinii），弓形虫（T. gondii）和鸟分枝杆菌（M. avium ）的有效和选择性抑制剂。 ）二氢叶酸还原酶（DHFR）。2-10的结构包含一个7-甲基，以增加单环甲氧苄氨嘧啶（TMP）的效力。通过氰基乙酸乙酯和适当取代的苯甲醛的酸催化缩合，然后使用甲基铜-锂进行迈克尔加成反应，合成目标化合物。将所得的加合物与胍进行环缩合，得到2，6-二氨基-4-羟基-5-（1-苯乙基）嘧啶2-7。的两个氨基部分2-4被新戊酰基保护，其4-羟基被氯氧化磷氯化。将所得的中间体进行氢化和脱保护，得到8-10。化合物7是DHFR的良好抑制剂，但是其他化合物是卡氏疟原虫，刚地弓形虫和鸟分枝杆菌DHFR的较弱抑制剂。