(E)-2-bromo-3-phenylprop-2-enal | 99686-39-2

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂醛
• 英文名称: (E)-2-bromo-3-phenylprop-2-enal
• 英文别名: α-bromocinnamaldehyde；(E)-2-bromo-3-phenylacrylaldehyde；Cinnamaldehyde, alpha-bromo-
• CAS: 99686-39-2
• 化学式: C₉H₇BrO
• 分子量: 211.058
• InChiKey: WQRWNOKNRHCLHV-RMKNXTFCSA-N

物化性质

• 沸点：
  304.4±30.0 °C(Predicted)
• 密度：
  1.499±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (E)-2-bromo-3-phenylprop-2-enal 在 氢氧化钾 、 羟胺 作用下， 生成 β-ethoxy-cinnamonitrile
  参考文献：
  名称：

  v. Auwers; Seyfried, Justus Liebigs Annalen der Chemie, 1930, vol. 484, p. 212,224

  摘要：

  DOI：
• 作为产物：
  描述：

  (2Z)-2-bromo-3-phenyl-2-propenal 以 丙酮 为溶剂， 生成 (E)-2-bromo-3-phenylprop-2-enal
  参考文献：
  名称：

  乙烯基自由基的光化学生成和结构

  摘要：

  一系列 E 或 Z 立体异构 α-R 取代溴苯乙烯（R = CH3、F 或 CN）在甲醇中的光解产生 E 和/或 Z 立体异构苯乙烯，它们源自相应的乙烯基自由基。结果表明，α-Me 乙烯基自由基是一种快速平衡的弯曲结构，而 α-F 乙烯基自由基是一种稳定的弯曲物质，与早期的热结果一致。根据作为温度函数的立体化学结果，α-CN 乙烯基自由基被指定为快速反转弯曲而不是线性物质。乙醚中 α-C(H)=O 系统的立体化学数据表明稳定的弯曲乙烯基自由基作为产物形成物质。结论得到了量子化学计算的支持。 (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

  DOI：

  10.1002/ejoc.200700882

文献信息

• Small Multitarget Molecules Incorporating the Enone Moiety
  作者：Thalia Liargkova、Nikolaos Eleftheriadis、Frank Dekker、Efstathia Voulgari、Constantinos Avgoustakis、Marina Sagnou、Barbara Mavroidi、Maria Pelecanou、Dimitra Hadjipavlou-Litina

  DOI：10.3390/molecules24010199

  日期：——

  Chalcones represent a class of small drug/druglike molecules with different and multitarget biological activities. Small multi-target drugs have attracted considerable interest in the last decade due their advantages in the treatment of complex and multifactorial diseases, since “one drug-one target” therapies have failed in many cases to demonstrate clinical efficacy. In this context, we designed and synthesized potential new small multi-target agents with lipoxygenase (LOX), acetyl cholinesterase (AChE) and lipid peroxidation inhibitory activities, as well as antioxidant activity based on 2-/4- hydroxy-chalcones and the bis-etherified bis-chalcone skeleton. Furthermore, the synthesized molecules were evaluated for their cytotoxicity. Simple chalcone b4 presents significant inhibitory activity against the 15-human LOX with an IC50 value 9.5 µM, interesting anti-AChE activity, and anti-lipid peroxidation behavior. Bis-etherified chalcone c12 is the most potent inhibitor of AChE within the bis-etherified bis-chalcones followed by c11. Bis-chalcones c11 and c12 were found to combine anti-LOX, anti-AchE, and anti-lipid peroxidation activities. It seems that the anti-lipid peroxidation activity supports the anti-LOX activity for the significantly active bis-chalcones. Our circular dichroism (CD) study identified two structures capable of interfering with the aggregation process of Aβ. Compounds c2 and c4 display additional protective actions against Alzheimer’s disease (AD) and add to the pleiotropic profile of the chalcone derivatives. Predicted results indicate that the majority of the compounds with the exception of c11 (144 Å) can cross the Blood Brain Barrier (BBB) and act in CNS. The results led us to propose new leads and to conclude that the presence of a double enone group supports better biological activities.

  查耳酮类药物代表了一类具有多种和多重靶点生物活性的小分子药物或类药分子。在过去的十年里，小型多靶点药物因其能够治疗复杂和多因素疾病的优点而引起了相当大的兴趣，因为“一种药物一个靶点”的治疗方法在许多情况下未能显示出临床疗效。在这种情况下，我们设计并合成了具有潜在的新小型多靶点药物，具有脂氧合酶（LOX）、乙酰胆碱酯酶（AChE）和脂质过氧化抑制活性，以及基于2-/4-羟基查耳酮和双醚化双查耳酮骨架的抗氧化活性。此外，合成的分子还对其细胞毒性进行了评估。简单的查耳酮b4对15-人LOX具有显著的抑制活性，IC50值为9.5 µM，具有有趣的抗AChE活性和抗脂质过氧化行为。双醚化查耳酮c12是双醚化双查耳酮中对AChE最有效的抑制剂，其次是c11。发现双查耳酮c11和c12具有抗LOX、抗AchE和抗脂质过氧化活性。看来抗脂质过氧化活性支持显著活性的双查耳酮的抗LOX活性。我们的圆二色性（CD）研究发现两种结构能够干扰Aβ的聚集过程。化合物c2和c4显示了额外的保护作用，防止阿尔茨海默病（AD）的发生，并增加了查耳酮衍生物的多效性特征。预测结果表明，除了c11（144 Å）之外，大多数化合物能够穿越血脑屏障（BBB）并在中枢神经系统发挥作用。这些结果使我们提出了新的线索，并得出结论，存在一个双烯酮基团可以支持更好的生物活性。
• Axial-Chiral Biisoquinoline<i>N</i>,<i>N</i>′-Dioxides Bearing Polar Aromatic C-H Bonds as Catalysts in Sakurai-Hosomi-Denmark Allylation
  作者：Carlyn Reep、Pierpaolo Morgante、Roberto Peverati、Norito Takenaka

  DOI：10.1021/acs.orglett.8b02457

  日期：2018.9.21

  as Lewis base catalysts are reported. Lewis bases containing the 3,5-bis(trifluoromethyl)phenyl group were found to be significantly more enantioselective for a wider range of substrates than those bearing aromatic residues that are not strongly electron-deficient in the allylation of aldehydes with allyltrichlorosilane. Also, optically pure 3,3′-dibromo-1,1′-biisoquinoline N,N′-dioxide that has not

  报道了设计，合成和评价带有极性芳族CH键的路易斯-碱催化剂的轴向手性双异喹啉。发现含有3，5-双（三氟甲基）苯基的路易斯碱对于较宽范围的底物比带有醛基的电子具有更大的对映选择性，所述芳族残基在醛与烯丙基三氯硅烷的烯丙基化中不是强电子缺陷的。另外，合成了以前没有报道的光学纯的3,3'-二溴-1,1'-二异喹啉N，N'-二氧化物作为常用的催化剂前体，以促进研究。
• Formal [3 + 4] Annulation of α,β-Unsaturated Acyl Azoliums: Access to Enantioenriched N–<i>H</i>-Free 1,5-Benzothiazepines
  作者：Chao Fang、Tao Lu、Jindong Zhu、Kewen Sun、Ding Du

  DOI：10.1021/acs.orglett.7b01457

  日期：2017.7.7

  An unprecedented formal [3 + 4] annulation of α,β-unsaturated acyl azoliums with 2-aminobenzenethiols has been utilized to synthesize enantioenriched N–H-free 1,5-benzothiazepines, which are recognized as privileged structures in numerous biologically active scaffolds. This protocol offers a rapid and direct pathway to access the target compounds with high enantioselectivities and has been applied

  α，β-不饱和酰基偶氮与2-氨基苯硫醇的前所未有的正式[3 + 4]环空反应已用于合成对映体富集的不含N- H的1,5-苯并硫氮杂s烷，在许多具有生物活性的支架中，这种结构被认为是特权结构。该方案提供了一种快速，直接的途径来以高对映选择性接近目标化合物，并已用于手性药物（R）-噻嗪酮的简明合成中。
• Titanocene(III) chloride mediated radical induced addition-elimination route to the synthesis of racemic and optically active trisubstituted tetrahydrofurans: Formal synthesis of magnofargesin and 7′-epimagnofargesin
  作者：P CHAKRABORTY、S K MANDAL、S C ROY

  DOI：10.1007/s12039-016-1106-0

  日期：2016.7

  Titanocene(III) Chloride mediated radical induced synthesis of 4-benzylidene substituted tetrahydrofuran, a typical lignan skeleton, has been accomplished in good yield through addition-elimination route in racemic as well as in optically active forms. The method has been applied to the synthesis of furano lignans, magnofargesin (1) and 7′-epimagnofargesin (2) in optically active forms. Titanocene(III)

  通过外消旋和旋光形式的加成-消除途径，已经成功地完成了钛茂新星（III）氯化物介导的自由基诱导的4-苄叉基取代的四氢呋喃（典型的木脂素骨架）的合成。该方法已被应用于呋喃木脂素的合成，magnofargesin（1）和7 ' -epimagnofargesin（2以光学活性形式）。 通过外消旋和旋光形式的加成-消除途径，已经成功地完成了钛茂新星（III）氯化物介导的自由基诱导的4-苄叉基取代的四氢呋喃（典型的木脂素骨架）的合成。该方法已用于合成光学活性形式的呋喃聚糖木脂素，厚朴素和7′-表脂素。
• Stereodivergent synthesis of 2-alkynyl buta-1,3-dienes using Sonogashira coupling with controllable retention or inversion of olefin geometry
  作者：Rinat N. Shakhmaev、Maria G. Ignatishina、Vladimir V. Zorin

  DOI：10.1016/j.tetlet.2019.151565

  日期：2020.3

  A stereodivergent approach to 2-alkynyl buta-1,3-dienes from a single stereoisomer of starting α-bromoenal has been developed. By simply switching the sequence of Sonogashira and Horner-Wadsworth-Emmons reactions, it is possible to obtain these branched dienynes with retention or almost complete inversion of the double bond configuration.

  已经开发了从起始α-溴烯醛的单一立体异构体到2-炔基丁-1,3-二烯的立体发散方法。通过简单地切换Sonogashira和Horner-Wadsworth-Emmons反应的顺序，就有可能获得保留或几乎完全反转双键构型的这些支链二烯。