5-甲氧基黄烷酮 | 55947-36-9

• 物质功能分类: 生物化工 - 提取物
• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 黄酮类化合物
• 中文名称: 5-甲氧基黄烷酮
• 中文别名: 5-甲氧基黄酮
• 英文名称: 5-methoxyflavanone
• 英文别名: 5-methoxy-2-phenylchroman-4-one；5-methoxy-2-phenyl-2,3-dihydrochromen-4-one
• CAS: 55947-36-9
• 化学式: C₁₆H₁₄O₃
• 分子量: 254.285
• InChiKey: YLLFUILNISGLHO-UHFFFAOYSA-N

物化性质

• 熔点：
  144-145°C
• 沸点：
  436.1±45.0 °C(Predicted)
• 密度：
  1.199±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• WGK Germany：
  3
• 海关编码：
  2932999099

制备方法与用途

5-甲氧基黄酮是白僵菌发酵过程中产生的代谢物。

反应信息

• 作为反应物：
  描述：

  5-甲氧基黄烷酮 在 2-碘酰基苯甲酸 作用下， 以 二甲基亚砜 为溶剂， 反应 24.0h， 以98%的产率得到5-甲氧基黄酮
  参考文献：
  名称：

  Selective and efficient oxidative modifications of flavonoids with 2-iodoxybenzoic acid (IBX)

  摘要：

  2-Iodoxybenzoic acid (IBX), a mild and efficient hypervalent iodine oxidant, has been utilised in different reaction conditions to perform several efficient oxidative modifications of flavonoids. Fine-tuning of the reaction conditions allowed remarkably selective modifications of these compounds. At room temperature, IBX proved to be an excellent reagent for a highly regioselective aromatic hydroxylation of monohydroxylated flavanones and flavones, generating the corresponding catecholic derivatives showing high antioxidant activity. At 90 degrees C, IBX efficiently dehydrogenated a large panel of methoxylated flavanones to their corresponding flavones exhibiting anticancer activity. IBX polystyrene has also been utilised to increase the recovery of highly polar compounds. Following the first oxidation, the reagent was recovered and reused in several runs without loss of efficiency and selectivity. The first example of an application of IBX polystyrene in a dehydrogenation reaction has been described. (c) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2010.06.014
• 作为产物：
  描述：

  5-甲氧基黄酮 在 Beauveria bassiana ATCC 7159 作用下， 以7.47%的产率得到5-甲氧基黄烷酮
  参考文献：
  名称：

  Microbial metabolism. Part 10: Metabolites of 7,8-dimethoxyflavone and 5-methoxyflavone

  摘要：

  Microbial transformation of 7,8-dimethoxyflavone (1) by Mucor ramannianus produced five metabolites: 7,8-dimethoxy-4'-hydroxyflavone (2), 3',4'-dihydroxy-7,8-dimethoxyflavone (3), 7,3'-dihydroxy-8-methoxyflavone (4), 7,4'-dihydroxy-8-methoxyflavone (5) and 8-methoxy-7,3',4'-trihydroxyflavone (6). It was, however, completely converted to a single metabolite, 7-hydroxy-8-methoxyflavone (7) by Aspergillus flavus. 5-Methoxyflavone (8), when fermented with Beauveria bassiana, gave a single product, 5-methoxyflavanone (9). Conversion of 8 with Aspergillus alliaceus yielded the metabolite 4'-hydroxy-5-methoxyflavone (10). The structures of the compounds 2-7, 9 and 10 were established by spectroscopic methods.

  DOI：

  10.1080/14786410902829797

文献信息

• Synthesis and Structure of Flavan-4-ols and 4-Methoxyflavans as New Potential Anticancer Drugs
  作者：Christelle Pouget、Catherine Fagnere、Jean-Philippe Basly、Hubert Leveque、Albert-José Chulia

  DOI：10.1016/s0040-4020(00)00566-4

  日期：2000.8

  Reduction of a series of substituted flavanones afforded synthetic access to flavan-4-ols and was followed for some of them by an SN2-type acid-catalysis in methanol to provide 4-methoxyflavans. The stereochemistry of these compounds was established by 1H and 13C NMR data. Flavan-4-ols and 4-methoxyflavans have been resolved into enantiomers which are being evaluated as anticancer drugs.

  一系列得到合成获得黄烷-4-醇和取代的黄烷酮的还原，随后进行由S它们中的一些Ñ在甲醇2类型的酸催化，以提供4- methoxyflavans。这些化合物的立体化学由1 H和13 C NMR数据确定。黄烷-4-醇和4-甲氧基黄烷已被解析为对映体，其被评估为抗癌药。
• Kinetics and mechanism of the cyclisation of 2′,6′-dihydroxychalcone and derivatives
  作者：Christopher O. Miles、Lyndsay Main

  DOI：10.1039/p29890001623

  日期：——

  profiles are reported for the cyclisation in water to 5-hydroxyflavanones of 2′,6′-dihydroxychalcone (1) and its 4-methoxy (2), 3,4-dimethoxy (3), 3,4,5-trimethoxy (4), 2,4,6-trimethoxy (5), 4-chloro (6), and 3,4,4′-trimethoxy (8) derivatives. As for the previously studied 2′,6′-dihydroxy-4,4′-dimethoxychalcone (7), rate coefficients are established for acid-catalysed cyclisation of neutral chalcone, for

  报道了pH–速率曲线，表明在水中环化成2'，6'-二羟基查尔酮（1）及其4-甲氧基（2），3,4-二甲氧基（3），3,4,5-的5-羟基黄酮三甲氧基（4），2,4,6-三甲氧基（5），4-氯（6）和3,4,4'-三甲氧基（8）衍生物。至于先前研究的2'，6'-二羟基-4,4'-二甲氧基查尔酮（7）的速率系数是为中性查尔酮的酸催化环化，中性，单阴离子和二阴离子查尔酮的单分子环化以及碱催化的反向开环反应而确定的。2'，6'-二羟基查耳酮单阴离子的环化速度比2'-羟基-6'-甲氧基查耳酮的单阴离子的环化速度快40倍（10），并且据估计比2'，4'-二羟基查耳酮的反应性单阴离子快约十倍。这些是6'-OH基团提高单阴离子环化速率的首次计算。该作用仅很小，并且被认为主要是由于氢键合烯醇化氧而使酮化的过渡态稳定。还讨论了查耳酮单阴离子之间的其他反应性差异。报告了单阴离子环化（1），（2）和（4）–（6）
• Synthesis of Flavanones via Palladium(II)-Catalyzed One-Pot β-Arylation of Chromanones with Arylboronic Acids
  作者：Hyung-Seok Yoo、Seung Hwan Son、Yang Yil Cho、Soo Jin Lee、Hyu Jeong Jang、Young Min Kim、Dong Hwan Kim、Nam Yong Kim、Boyoung Y. Park、Yong Sup Lee、Nam-Jung Kim

  DOI：10.1021/acs.joc.9b01162

  日期：2019.8.16

  total of 47 flavanones were expediently synthesized via one-pot β-arylation of chromanones, a class of simple ketones possessing chemically unactivated β sites, with arylboronic acids via tandem palladium(II) catalysis. This reaction provides a novel route to various flavanones, including natural products such as naringenin trimethyl ether, in yields up to 92%.

  合宜地通过一锅二价的苯并二氢吡喃酮与芳基硼酸通过串联钯（II）催化合成了苯并二氢吡喃酮（一类具有化学未活化β位点的简单酮），合成了47种黄烷酮。该反应提供了一种以高达92％的收率获得各种黄烷酮（包括天然产物，如柚皮苷三甲醚）的新颖途径。
• Synthesis of Flavanones using Methane Sulphonic Acid as a Greencatalystand Comparision under Different Conditions
  作者：R. B. Kshatriya、G. M. Nazeruddin

  DOI：10.13005/ojc/300264

  日期：2014.7.1

  Flavonoids are an important class of natural products with  wide   range activities.Flavonoids includes flavone,flavanone,flavane & flavanol.The synthetic route invovles synthesis of chalcone followed by ring closing to give flavanone.So many catalysts were mentioned in past literature.But most efficient catalyst is methane sulphonic acid.It is easy to handle,less reaction time &easily available.Flavanones were synthesized from chalcone using methane sulphonic acid under thermal condition,microw wave and ultrasound condition.Flavanones are syntheisized in very less time compared to other conditions.

  类黄酮是一类具有广泛活性的重要天然产物，其中包括黄酮、二氢黄酮、黄烷和黄烷醇。合成路线涉及先合成查耳酮，然后通过环合反应生成二氢黄酮。过去的文献中提到了许多催化剂，但最有效的催化剂是甲烷磺酸。它易于处理，反应时间短且易于获取。在热条件、微波和超声条件下，使用甲烷磺酸从查耳酮合成二氢黄酮。与其他条件相比，二氢黄酮的合成时间非常短。
• The kinetics and mechanism of the cyclisation of some 2′-hydroxychalcones to flavanones in basic aqueous solution
  作者：K. Barry Old、Lyndsay Main

  DOI：10.1039/p29820001309

  日期：——

  profiles, one of which [chalcone (I)] differs from that previously reported. Possible effects on rate coefficients of non-bonded interactions between 6′-substituents and carbonyl oxygen are briefly considered but the differences between chalcones with and without 6′-substituents are sufficiently small to deter prolonged discussion. There seems to be little serious hindrance of cyclisation for any of the 6′-substituted

  对于某些2'-羟基查耳酮，在其2'-羟基经过电离的pH范围（约8-11）中，查尔酮-黄酮平衡反应的速率系数已经确定。研究的查耳酮为母体2'-羟基查耳酮（I）及其以下衍生物：4'-OMe（II），6'-OMe（III），4'-OH（IV），4'，6'-Me 2（V）和5'，6'-苯并（VI）。伪一级速率系数（ķ OBS），其为有关可逆反应，是在正向和反向速率系数的总和，拟合动力学形式ķ OBS = KF甲+ ķ ' ˚F乙+ ķ “一OH –其中k和k '分别是中性和离子化查尔酮单分子环化的速率系数（ f A和f B是在相关pH下以中性和离子化形式存在的总查尔酮的分数），其中k ”是黄烷酮涉及氢氧根离子（活性为OH –）的逆反应的二级速率系数。数据分析给出了速率系数和p K a除查耳酮（IV）以外的所有分子具有不同的动力学形式。提出了一种共轭添加消除机制来解释pH值速率分布，其中一种[查尔酮