2'-Bromoflavone | 331824-59-0

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 黄酮类化合物
• 英文名称: 2'-Bromoflavone
• 英文别名: 2-(2-bromophenyl)-4H-1-benzopyran-4-one；2-(2-bromophenyl)-4H-chromen-4-one；2-(2-bromophenyl)-chromen-4-one；2-(2-bromo-phenyl)-chromen-4-one；2-(2-Brom-phenyl)-chromen-4-on；bromoflavone；2-(2-Bromophenyl)chromen-4-one
• CAS: 331824-59-0
• 化学式: C₁₅H₉BrO₂
• 分子量: 301.139
• InChiKey: QDFQWUUYNVNGRC-UHFFFAOYSA-N

物化性质

• 熔点：
  127-128 °C
• 沸点：
  416.5±45.0 °C(Predicted)
• 密度：
  1.540±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 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：

  2'-Bromoflavone 、 3-硝基苯硼酸 在 cesium fluoride 作用下， 以 四氢呋喃 为溶剂， 反应 0.5h， 以64%的产率得到2-(3'-nitrobiphenyl-2-yl)-chromen-4-one
  参考文献：
  名称：

  Microwave enhanced palladium catalysed coupling reactions: A diversity-oriented synthesis approach to functionalised flavones

  摘要：

  引入了微波增强的多样性导向合成（MEDOS），采用钯催化的方案，作为系统修饰小分子合成的一种强大新策略，并通过功能化黄酮的应用进行了突出展示。

  DOI：

  10.1039/b610734f
• 作为产物：
  描述：

  (E)-3-(2-bromophenyl)-1-(2'-hydroxyphenyl)prop-2-en-1-one 在 碘 作用下， 以 二甲基亚砜 为溶剂， 反应 1.0h， 生成 2'-Bromoflavone
  参考文献：
  名称：

  Synthetic chalcones, flavanones, and flavones as antitumoral agents: Biological evaluation and structure–activity relationships

  摘要：

  A series of synthetic chalcones, flavanones, and flavones has been synthesized and evaluated for antitumor activity against the human kidney carcinoma cells TK-10, human mammary adenocarcinoma cells MCF-7 (estrogen receptor-positive), and human colon adenocarcinoma cells HT-29. The most active series is the chalcone ones with the best results against TK-10 and HT-29 cells. Fourteen out of 53 analyzed compounds resulted very active against at least two of the studied tumoral cells. Alkaline single cell gel electrophoresis, comet assay, was performed as a study of the chromosomal aberrations promoted by the compounds on normal cells. Four active and two inactive chalcones were studied in the comet assay against normal human kidney cells (HK-2). A structure-activity relationship analysis of these compounds was performed and for 4- and 3,4-disubstituted derivatives a quantitative correlation was obtained in the case of anti-HT-29 activity. (c) 2007 Published by Elsevier Ltd.

  DOI：

  10.1016/j.bmc.2007.03.031

文献信息

• Transition-Metal-Free Intramolecular Ullmann-Type O-Arylation: Synthesis of Chromone Derivatives
  作者：Jie Zhao、Yufen Zhao、Hua Fu

  DOI：10.1002/anie.201007302

  日期：2011.4.11

  Expect the upexpected: A transition‐metal‐free approach to access chromone derivatives has been developed. The intramolecular O‐arylation of substituted 1‐(2‐haloaryl)‐propane‐1,3‐diones in DMF in the presence of K2CO3 gave the corresponding target products in good to excellent yields (see scheme; DMF=N,N′‐dimethylformamide).

  期望超出预期：已开发出一种无过渡金属的方法来获取色酮衍生物。在存在K 2 CO 3的情况下，在DMF中进行取代的1-（2-卤代芳基）-丙烷-1,3-二酮的分子内O-芳基化反应，相应的目标产物收率良好至优异（参见方案； DMF = N，N'-二甲基甲酰胺）。
• Ionic liquid mediated Cu-catalyzed cascade oxa-Michael-oxidation: efficient synthesis of flavones under mild reaction conditions
  作者：Zhiyun Du、Huifen Ng、Kun Zhang、Huaqiang Zeng、Jian Wang

  DOI：10.1039/c1ob06209c

  日期：——

  Flavonoids are a class of natural products, found in a wide range of vascular plants and dietary components. Their low toxicity and extensive biological activities, including anti-cancer and anti-bacterial, have made them attractive candidates to serve as therapeutic agents for many diseases. Herein, we disclose a highly efficient synthetic method of CuI-catalyzed cascade oxa-Michael-oxidation, using chalcones as substrates, mediated by the ionic liquid [bmim][NTf2] at a low temperature. This efficient synthetic method has demonstrated high synthetic utility and can afford flavones in good to high yields (up to 98%).

  黄酮类化合物是一类天然产物，广泛存在于维管植物和饮食成分中。它们具有低毒性和广泛的生物活性，包括抗癌和抗菌作用，使其成为治疗多种疾病的吸引人的候选治疗剂。在这里，我们揭示了一种高效的CuI催化的级联氧杂迈克尔氧化合成方法，以查尔酮为底物，在低温下通过离子液体[bmim][NTf2]介导。这种高效的合成方法展示了高度的合成实用性，可以获得高产率的黄酮类化合物（高达98%）。
• An efficient oxidative conversion of 2-aryl-2H-chromenes to the corresponding flavones by tert-butylhydroperoxide and copper bromide
  作者：Dipanwita Banerjee、Utpal Kayal、Gourhari Maiti

  DOI：10.1016/j.tetlet.2016.03.006

  日期：2016.4

  A simple and efficient method has been developed for the facile oxidation of chromenes to the corresponding flavones by tert-butylhydroperoxide (TBHP) in the presence of copper(II) bromide catalyst in toluene at 80 °C in a very short time. The reaction demonstrates excellent reactivity, functional group tolerance, and good to excellent yields without using conventional strong oxidizing agents.

  已经开发了一种简单有效的方法，用于在80℃下于很短时间内在甲苯中存在溴化铜（II）的情况下，通过叔丁基氢过氧化物（TBHP）轻松地将二甲基苯酮氧化为相应的黄酮。该反应显示出优异的反应性，官能团耐受性以及良好至优异的产率，而无需使用常规的强氧化剂。
• 10.1039/d4gc02212b
  作者：Zhang, Gang-Qiong、Yang, Fang、Chen, Wen-Shuai、Zhao, Xiaoyu、Wang, Ting、Chen, Zi-Sheng、Ji, Kegong

  DOI：10.1039/d4gc02212b

  日期：——

  shown that 1,3-propanediol acts both as a participant and solvent to achieve regioselective cyclization and carbonyl site oxygen migration. Significantly, the total synthesis of drug molecules efloxate 6 and flavodilol 7 and bioactive molecules, such as 8 and MN-64, further demonstrates the efficacy and synthetic potential of this method. Moreover, most established flavonoid derivatives are found to have

  开发了一种以β-苯氧基炔酮为原料，以湿1,3-丙二醇为反应介质，在不使用任何金属催化剂、碱、酸或添加剂的情况下，绿色、高效、高区域选择性合成黄酮类化合物及其衍生物的方法。该反应表现出高水平的功能耐受性和广泛的底物范围，操作简单，原子经济性高。此外，机制研究表明，1,3-丙二醇既作为参与者又作为溶剂，实现区域选择性环化和羰基位点氧迁移。值得注意的是，药物分子efloxate 6和flavodilol 7以及生物活性分子8和MN-64的全合成进一步证明了该方法的功效和合成潜力。此外，大多数已建立的黄酮类衍生物都具有很强的抗炎活性，其中2d表现出更好的效果，IC 50 值较低，为5.67 μg mL −1 。
• Chen; Yang, Taiwan Yaoxue Zazhi, 1951, vol. 3, p. 39
  作者：Chen、Yang

  DOI：——

  日期：——