(E)-4-styrylphenyl acetate

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: (E)-4-styrylphenyl acetate
• 英文别名: (E)-4-Acetoxystilbene；[4-[(E)-2-phenylethenyl]phenyl] acetate
• 化学式: C₁₆H₁₄O₂
• 分子量: 238.286
• InChiKey: SEMXFQLBQPCKNI-BQYQJAHWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (E)-4-styrylphenyl acetate 在 sodium methylate 作用下， 以 四氢呋喃 为溶剂， 反应 10.0h， 以75.8%的产率得到反式-4-羟基芪
  参考文献：
  名称：

  Synthesis and Bioactivity of Resveratrol Analogues

  摘要：

  据报道，白藜芦醇能够增强SIRT1的表达，并通过刺激与哺乳动物SIRT1具有高度同源性的Sir2，显著模拟热量限制的效果。设计并合成了系列新型白藜芦醇衍生物，作为新型SIRT1激动剂的候选物质。通过核磁共振(1H NMR)光谱分析对合成的化合物进行了表征，并利用Bioscreen C MBR机器在100 μM/L浓度下检测了这些化合物对酵母亲本菌株BY4743的Sir2激活作用。与白藜芦醇相比，多个化合物表现出良好的Sir2激活活性。同时，还讨论了这些化合物的结构-活性关系与Sir2激活活性的相关性。

  DOI：

  10.14233/ajchem.2014.16226
• 作为产物：
  描述：

  間乙烯[苯]酚 在 4-二甲氨基吡啶 、 palladium diacetate 、 三乙胺 、 三苯基膦 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 19.5h， 生成 (E)-4-styrylphenyl acetate
  参考文献：
  名称：

  Galloyl esters of trans-stilbenes are inhibitors of FASN with anticancer activity on non-small cell lung cancer cells

  摘要：

  Fatty acid synthase (FASN) is a lipogenic enzyme that is selectively upregulated in malignant cells. There is growing consensus on the oncogenicity of FASN-driven lipogenesis and the potential of FASN as a druggable target in cancer. Here, we report the synthesis and FASN inhibitory activities of two novel galloyl esters of trans-stilbene EC1 and EC5. Inhibition of FASN was accompanied by a loss in AKT activation and profound apoptosis in several non-small cell lung cancer (NSCLC) cells at the growth inhibitory concentrations of EC1 and EC5. Both FASN and phospho-AKT levels were concurrently downregulated. However, addition of a lipid concentrate to the treated cells reinstated cell viability and reversed the loss of FASN and AKT protein levels, thus recapitulating the causal relationship between FASN inhibition and the loss in cell viability. (C) 2019 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2019.111597

文献信息

• Ionic liquid-mediated benzoyl transfer-coupling in the Suzuki and Sonogashira reactions and aryl transfer-coupling by decarbonylative Heck reaction, using N-Benzoyl-saccharin (NBSac) as reagent
  作者：Shruti S. Malunavar、Suraj M. Sutar、Pavankumar Prabhala、Rajesh G. Kalkhambkar、Kenneth K. Laali

  DOI：10.1016/j.tetlet.2020.151987

  日期：2020.6

  of N-benzoyl-saccharin (NBSac) as reagent for selective benzoyl transfer-coupling in the Suzuki reaction in BMIM-IL/[PAIM][NTf2] as solvent/base, and in the Sonogashira reaction employing guanidinium-IL (GIL) as solvent, are demonstrated. Decarbonylative aryl transfer-coupling occurs in the Heck reaction employing GIL as solvent. The reactions are catalyzed by Pd(OAc)2 or NiCl2(dppp), are performed

  在BMIM-IL / [PAIM] [NTf 2 ]作为溶剂/碱的Suzuki反应中以及在使用胍基-IL的Sonogashira反应中，N-苯甲酰糖精（NBSac）作为选择性苯甲酰转移偶联试剂的功效GIL）作为溶剂进行了演示。在使用GIL作为溶剂的Heck反应中发生脱羰基芳基转移偶联。该反应由Pd（OAc）2或NiCl 2（dppp）催化，在温和条件下以高收率进行，并且具有回收/再利用IL溶剂的潜力。总之，这些方法提供了对二芳基酮，酮-乙炔和二芳基-乙烯的各种文库的便捷访问。
• Palladium-catalyzed Mizoroki–Heck-type reactions of [Ph₂SR_fn][OTf] with alkenes at room temperature
  作者：Shi-Meng Wang、Hai-Xia Song、Xiao-Yan Wang、Nan Liu、Hua-Li Qin、Cheng-Pan Zhang

  DOI：10.1039/c6cc06089g

  日期：——

  The first Pd-catalyzed Mizoroki-Heck-type reaction of [Ph2SRfn][OTf] with alkenes is described. The reaction of [Ph2SRfn][OTf] (Rfn = CF3, CH2CF3) with alkenes in the presence of 10 mol% Pd[P(t-Bu)3]2 and TsOH...

  描述了[Ph2SRfn] [OTf]与烯烃的第一个Pd催化的Mizoroki-Heck型反应。在10 mol％Pd [P（t-Bu）3] 2和TsOH存在下，[Ph2SRfn] [OTf]（Rfn = CF3，CH2 ）与烯烃的反应...
• Straightforward synthesis of phenanthrenes from styrenes and arenes
  作者：Hu Li、Ke-Han He、Jia Liu、Bi-Qin Wang、Ke-Qing Zhao、Ping Hu、Zhang-Jie Shi

  DOI：10.1039/c2cc33100d

  日期：——

  Semi-one-pot synthesis of phenanthrenes from styrenes and arenes was developed through cross-dehydrogenative coupling. A sequence of Heck-type coupling and photo-cyclization were involved and a variety of functionalities were tolerated. This method provides an effective and practical protocol towards the synthesis of substituted phenanthrenes.

  通过交叉脱氢偶合，从苯乙烯和芳烃半一锅合成菲。涉及一系列的Heck型偶联和光环化，并且可以耐受多种功能。该方法为合成取代的菲提供了有效而实用的方案。
• Synthesis of Stilbenes by Rhodium-Catalyzed Aerobic Alkenylation of Arenes via C–H Activation
  作者：Xiaofan Jia、Lucas I. Frye、Weihao Zhu、Shunyan Gu、T. Brent Gunnoe

  DOI：10.1021/jacs.0c03935

  日期：2020.6.10

  Arene alkenylation is commonly achieved by late transition metal-mediated C(sp2)-C(sp2) cross-coupling, but this strategy typically requires prefunctionalized substrates (e.g., with halides or pseudohalides) and/or the presence of a directing group on the arene. Transition metal-mediated arene C-H activation and alkenylation offers an alternative method to functionalize arene substrates. Herein, we

  芳烃烯基化通常通过后期过渡金属介导的 C(sp2)-C(sp2) 交叉偶联实现，但该策略通常需要预官能化底物（例如，具有卤化物或拟卤化物）和/或在芳烃。过渡金属介导的芳烃 CH 活化和烯基化提供了一种功能化芳烃底物的替代方法。在此，我们报告了由芳烃和苯乙烯进行铑催化氧化芳烃烯基化以制备二苯乙烯和二苯乙烯衍生物。芳烃和烯烃上的几个官能团（包括氟化物、氯化物、三氟甲基、酯、硝基、乙酸酯、氰化物和醚基团）的反应是成功的。单取代芳烃的反应对间位和对位的烯基化具有选择性，通常具有大约 2 个：1 选择性，分别。白藜芦醇和 (E)-1,2,3-三甲氧基-5-(4-甲氧基苯乙烯基)苯 (DMU-212) 是通过这种单步方法以高产率合成的。与钯催化的比较表明，铑催化对单取代芳烃的间位官能化具有更高的选择性，并且Rh催化对卤素基团的耐受性更好。
• Stereodivergent Alkyne Reduction by using Water as the Hydrogen Source
  作者：Santhosh Rao、Kandikere Ramaiah Prabhu

  DOI：10.1002/chem.201803147

  日期：2018.9.18

  homogeneous Pd‐catalyzed stereodivergent reduction of alkynes to Z and E alkenes by using H2O as the H2 source is presented. Mediated by a diboron reagent, the transfer hydrogenation has been accomplished to yield the desired geometrical isomer by rational ligand selection. The switchable stereoselectivity achieved using simple phosphine ligands is generally excellent. D2O has also been used as a D2 source

  通过使用H 2 O作为H 2源，提出了炔烃均相Pd催化的立体发散性还原为Z和E烯烃的方法。在乙硼试剂的介导下，已经通过合理的配体选择完成了转移氢化反应，以产生所需的几何异构体。使用简单的膦配体实现的可切换立体选择性通常非常好。D 2 O也已经用作合成相应的氘代烯烃的D 2源。在克级合成的支持下，该反应可以轻松扩大规模，使其也成为商业上制备烯烃的有效方法。机理研究表明H-PdL 2的形成-OAc是导致存在两个涉及H-Pd-B（OR）2和分子H 2作为活性中间体的途径的关键步骤。