(E)-1-苯基-2-M-甲苯基乙烯 | 14064-48-3

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 中文名称: (E)-1-苯基-2-M-甲苯基乙烯
• 中文别名: 1-甲基-3-[(E)-2-苯基乙烯基]苯
• 英文名称: (E)-3-methylstilbene
• 英文别名: (E)-1-methyl-3-styrylbenzene；trans-3-methylstilbene；3-methyl-trans-stilbene；(E)-3-methyl-1-styrylbenzene；1-methyl-3-styrylbenzene；(E)-1-methyl-3-(2-phenylethenyl)benzene；Stilbene, 3-methyl-, (E)-；1-methyl-3-[(E)-2-phenylethenyl]benzene
• CAS: 14064-48-3
• 化学式: C₁₅H₁₄
• 分子量: 194.276
• InChiKey: BRFDXZHUQCOPKE-ZHACJKMWSA-N

物化性质

• 熔点：
  50-51 °C
• 沸点：
  305.4±17.0 °C(Predicted)
• 密度：
  1.028±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.2
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

安全信息

• 海关编码：
  2902909090

反应信息

• 作为反应物：
  描述：

  (E)-1-苯基-2-M-甲苯基乙烯 在 N-溴代丁二酰亚胺(NBS) 、 偶氮二异丁腈 作用下， 以 四氯化碳 为溶剂， 反应 10.5h， 以246 mg的产率得到trans-3-(bromomethyl)stilbene
  参考文献：
  名称：

  Synthesis and biological evaluation of triazole analogues of antillatoxin

  摘要：

  Antillatoxin 1, a cyclic lipopeptide, is known as an activator of voltage-gated sodium channels and exhibits potent neurotoxicity toward Neuro 2a mouse neuroblastoma cells. To investigate the biological effects of the side-chain structures at C5 and C5' in detail, we planned SAR studies of C5- and C5'-modified antillatoxin analogues. To diversify the structures at the last step of the synthesis, two key intermediates 4 and 6 possessing terminal alkynes at the C5- and C5'-positions were designed and synthesized using two distinct strategies. Sixteen side-chain derivatives were then prepared from 4 and 6 by coupling with a wide variety of azides via click chemistry, and subjected to the cytotoxicity assay. Although almost all of the C5-substituted analogues exhibited no cytotoxicity, the C5'-substituted analogues showed modest cytotoxicity. These results showed that C5' is more tolerant than C5 to structural modifications. The present SAR study will provide valuable information for designing new antillatoxin-based molecular probes for neuroscience research. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.05.012
• 作为产物：
  描述：

  间甲基苯甲酸 在 palladium dichloride 异喹啉 、 三乙胺 、 lithium chloride 作用下， 以 二氯甲烷 为溶剂， 生成 (E)-1-苯基-2-M-甲苯基乙烯
  参考文献：
  名称：

  Pd-Catalyzed Decarbonylative Olefination of Aryl Esters: Towards a Waste-Free Heck Reaction

  摘要：

  DOI：

  10.1002/1521-3773(20020402)41:7<1237::aid-anie1237>3.0.co;2-f

文献信息

• N-Heterocyclic carbene palladium (II)-pyridine (NHC-Pd (II)-Py) complex catalyzed heck reactions
  作者：Dan Li、Qingqiang Tian、Xuetong Wang、Qiang Wang、Yin Wang、Siwei Liao、Ping Xu、Xin Huang、Jianyong Yuan

  DOI：10.1080/00397911.2021.1919711

  日期：——

  Abstract A mild, efficient, and practical catalytic system for the synthesis of highly privileged stilbene pharmacophores is reported. This system uses N-heterocyclic carbene palladium (II) Pyridine (NHC-Pd (II)-Py) complex to catalyze the formation of carbon-carbon bonds between olefin derivatives and various bromide. This simple, gentle and user-friendly method can offer a variety of stilbene products

  摘要 报道了一种温和、高效且实用的催化系统，用于合成高度特权的二苯乙烯药效团。该系统使用N-杂环卡宾钯(II)吡啶(NHC-Pd(II)-Py)配合物催化烯烃衍生物与各种溴化物之间形成碳-碳键。这种简单、温和且用户友好的方法可以在无溶剂条件下以优异的收率提供各种二苯乙烯产品。且其放大反应收率优良，可应用于工业领域。该方法的实用性突出表现在其可合成一系列生物活性分子或重要的医药中间体的通用性和模块化合成。
• 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。
• Pd-Catalyzed Cross-Coupling of Organostibines with Styrenes to Give Unsymmetric (<i>E</i>)-Stilbenes and (1<i>E</i>,3<i>E</i>)-1,4-Diarylbuta-1,3-dienes and Fluorescence Properties of the Products
  作者：Zhao Zhang、Dejiang Zhang、Longzhi Zhu、Dishu Zeng、Nobuaki Kambe、Renhua Qiu

  DOI：10.1021/acs.orglett.1c01532

  日期：2021.7.16

  A general and effective palladium-catalyzed cross-coupling of organostibines with styrenes to give (E)-olefins was disclosed. By the use of an organostibine reagent, this method can produce unsymmetric (E)-1,2-diarylethylenes and (1E,3E)-1,4-diarylbuta-1,3-dienes in good yields with high E/Z selectivity and good functional group tolerance. Resveratrol and DMU-212 were synthesized in high yield. The

  公开了一种通用且有效的钯催化的有机锑与苯乙烯的交叉偶联，以得到 ( E )-烯烃。通过使用有机锑试剂，该方法可以以良好的收率和高E / Z制备不对称的 ( E )-1,2-二芳基乙烯和 (1 E ,3 E )-1,4-二芳基丁二烯-1,3-二烯选择性和良好的官能团耐受性。白藜芦醇和 DMU-212 以高产率合成。该协议可以扩展到 (1 E ,3 E ,5 E )-1,6-diphenylhexa-1,3,5-triene的合成,产率为 40%。产品5e、5f和7a 显示出良好的光致发光量子产率，范围为 72% 至 99%。
• Mizoroki–Heck Reaction of Unstrained Aryl Ketones via Ligand-Promoted C–C Bond Olefination
  作者：Mei-Ling Wang、Hui Xu、Han-Yuan Li、Biao Ma、Zhen-Yu Wang、Xing Wang、Hui-Xiong Dai

  DOI：10.1021/acs.orglett.1c00296

  日期：2021.3.19

  Mizoroki–Heck reaction of unstrained aryl ketone with acrylate/styrene is accomplished via palladium-catalyzed ligand-promoted C–C bond cleavage. Various (hetero)aryl ketones are compatible in the reaction, affording the alkene product in good to excellent yields. Further applications in the late-stage olefination of some drugs, natural products, and fragrance-derived aryl ketones demonstrate the synthetic utility

  未应变的芳基酮与丙烯酸酯/苯乙烯的Mizoroki-Heck反应是通过钯催化的配体促进的C-C键裂解实现的。各种（杂）芳基酮在反应中是相容的，从而以良好至优异的产率提供了烯烃产物。在某些药物，天然产物和香料衍生的芳基酮的后期烯烃聚合中的进一步应用证明了该方案的合成效用。通过采用酮作为导向基团和离去基团二者，1,2- bifunctionalization经由顺序实现邻-C-H的烷基化/本位-Heck烯。
• Palladium-Catalyzed Reductive Coupling Reaction of Terminal Alkynes with Aryl Iodides Utilizing Hafnocene Difluoride as a Hafnium Hydride Precursor Leading to <i>trans</i> -Alkenes
  作者：Keita Takahashi、Yohei Ogiwara、Norio Sakai

  DOI：10.1002/asia.201701775

  日期：2018.4.4

  Herein, we describe a reductive cross‐coupling of alkynes and aryl iodides by using a novel catalytic system composed of a catalytic amount of palladium dichloride and a promoter precursor, hafnocene difluoride (Cp2HfF2, Cp=cyclopentadienyl anion), in the presence of a mild reducing reagent, a hydrosilane, leading to a one‐pot preparation of trans‐alkenes. In this process, a series of coupling reactions

  在本文中，我们描述了通过使用新型催化体系（包括催化量的二氯化钯和助催化剂前体二茂fluor二氟化物（Cp 2 HfF 2，Cp =环戊二烯基阴离子）组成的炔烃和碘代芳烃的还原性交叉偶联。一种温和的还原剂，氢硅烷，可以一锅制备反式烯烃。在此过程中，一系列的偶联反应通过以下三个步骤有效地进行：（i）由二茂ha和氢硅烷初步形成initial氢化物，（ii）随后向炔烃加氢卤化，以及（iii）烯基ha物种变成钯络合物。该还原偶联可化学选择用于制备具有各种官能团（例如烷基，卤素，酯，硝基，杂环，硼酸酯和内部炔烃）的反式烯烃。