1-(3,6-二羟基-2,4-二甲氧基苯基)-乙酮 | 6962-57-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 1-(3,6-二羟基-2,4-二甲氧基苯基)-乙酮
• 英文名称: 3,6-dihydroxy-2,4-dimethoxyacetophenone
• 英文别名: 1-(3,6-dihydroxy-2,4-dimethoxyphenyl)ethan-1-one；2,5-dihydroxy-4,6-dimethoxyacetophenone；3,6-Dihydroxy-2,4-dimethoxy-acetophenon；2,5-Dihydroxy-4,6-dimethoxyacetophenon；1-(3,6-Dihydroxy-2,4-dimethoxyphenyl)ethanone
• CAS: 6962-57-8
• 化学式: C₁₀H₁₂O₅
• 分子量: 212.202
• InChiKey: JQIYCACQAOMVTI-UHFFFAOYSA-N

物化性质

• 熔点：
  162-163 °C
• 沸点：
  425.4±45.0 °C(Predicted)
• 密度：
  1.279±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  76
• 氢给体数：
  2
• 氢受体数：
  5

安全信息

• WGK Germany：
  3
• 海关编码：
  2914509090

反应信息

• 作为反应物：
  描述：

  1-(3,6-二羟基-2,4-二甲氧基苯基)-乙酮 在 碘 、 吡啶盐酸盐 、 potassium hydroxide 作用下， 以 甲醇 、 二甲基亚砜 为溶剂， 反应 81.0h， 生成 野黄芩素
  参考文献：
  名称：

  黄酮黄酮苷的实用合成

  摘要：

  使用可用且廉价的 2,6-二甲氧基-1,4-苯醌作为起始原料，以 60% 的总收率实现了实用且经济的黄酮黄酮五步合成。反应顺序包括还原为相应的醌醇、Friedel-Crafts 乙酰化、Claisen-Schmidt 与对甲氧基苯甲醛缩合、环化和去甲基化。该程序操作简单，适合放大合成。

  DOI：

  10.3184/174751917x14873588907765
• 作为产物：
  描述：

  2-羟基-4,6-二甲氧基苯乙酮 在 dipotassium peroxodisulfate 、 sodium hydroxide 作用下， 以 水 为溶剂， 反应 168.0h， 以64%的产率得到1-(3,6-二羟基-2,4-二甲氧基苯基)-乙酮
  参考文献：
  名称：

  Flavone derivatives and their use

  摘要：

  本发明涉及黄酮衍生物及含有一种或多种这些黄酮衍生物的组合物。本发明还涉及用于治疗和/或预防病毒感染的黄酮衍生物或组合物，并涉及一种预防或治疗这些感染的方法。

  公开号：

  EP2641904A1

文献信息

• 크로만 유도체 및 이를 유효성분으로 함유하는 신생혈관성 안질환 또는 암의 예방 또는 치료용 약학적 조성물
  申请人：Gachon University of Industry-Academic cooperation Foundation 가천대학교 산학협력단(220040376324) BRN ▼129-82-07687

  公开号：KR20200124630A

  公开（公告）日：2020-11-03

  본 발명은 크로만 유도체인 하기 화학식 1의 화합물, 이의 수화물, 이의 입체 이성질체, 또는 이의 약학적으로 허용 가능한 염을 포함하는 암 또는 신생혈관과 관련된 질환 치료용 약학적 조성물을 제공한다. [화학식 1] (상기 화학식 1에서 R, R, R, R, R, R, R은 발명의 설명에서 정의한 바와 같다.)

  本发明提供了一种用于治疗与癌症或新生血管有关的疾病的药学组合物，其中包括化学式1的某种克隆衍生物化合物、其水合物、其立体异构体或其药学上可接受的盐。【化学式1】（其中R，R，R，R，R，R，R如上述化学式1中所定义）。
• 一种制备黄芩素的方法
  申请人：昆明理工大学

  公开号：CN105906599B

  公开（公告）日：2018-10-23

  本发明公开了一种制备黄芩素的方法，该方法以2,6‑二甲氧基对苯醌为起始原料，经过还原、付克乙酰化、克莱森缩合、脱氢氧化环合以及脱甲基五步反应即可高收率制得黄芩素。该方法所用起始原料及试剂等均价廉易得，合成步骤较少，操作简单方便，易于生产控制，产物收率高，纯度好，适宜于黄芩素的大量制备和生产应用。
• Syntheses of 3',4'-dihydroxy-5,6,7- and 5,7,8-trioxygenated 3',4'-dihydroxy flavones having alkoxy groups and their inhibitory activities against arachidonate 5-lipoxygenase
  作者：Tokunaru Horie、Masao Tsukayama、Hiroki Kourai、Chieko Yokoyama、Masayuki Furukawa、Tanihiro Yoshimoto、Shozo Yamamoto、Shigekatsu Watanabe-Kohno、Katsuya Ohata

  DOI：10.1021/jm00161a021

  日期：1986.11

  Arachidonate 5-lipoxygenase plays a pivotal role in the biosynthesis of leukotrienes. Cirsiliol (3',4',5-trihydroxy-6,7-dimethoxyflavone), a selective inhibitor of the enzyme, was derivatized by introducing alkyl groups of various chain lengths at positions 5, 6, 7, and 8 of the A ring of the flavone skeleton. Modification of the positions 5 and 6 with an alkyl group of 5-10 carbons markedly decreased

  花生四烯酸5-脂氧合酶在白三烯的生物合成中起关键作用。通过在A环的5、6、7和8位上引入各种链长的烷基，可以衍生化酶的选择性抑制剂Cirsiliol（3'，4'，5-三羟基-6,7-二甲氧基黄酮）黄酮骨架。用5-10个碳的烷基修饰位置5和6，将5-脂氧合酶抑制作用的IC50值明显降低至10 nM。如用5-或6-己氧基氧基衍生物测试，显示了对5-脂氧合酶的相对选择性的抑制。抑制12-脂氧合酶需要这些化合物的浓度更高，而环氧合酶则没有被抑制。修饰7和8位不会增加大多数黄酮类化合物的抑制作用。
• Studies of the Selective O-Alkylation and Dealkylation of Flavonoids.XX. A Convenient Method for Synthesizing 5,6,7-Trihydroxyisoflavones and 5,6-Dihydroxy-7-methoxyisoflavones.
  作者：Tokunaru HORIE、Masahiro SASAGAWA、Fumihito TORII、Yasuhiko KAWAMURA、Kazuyo YAMASHITA

  DOI：10.1248/cpb.44.486

  日期：——

  3', 6'-Bis(benzyloxy)-2', 4'-dimethoxychalcones, which were derived from dibenzyl ether of 3, 6-dihydroxy-2, 4-dimethoxyacetophenone, were oxidatively rearranged with thallium(III) nitrate (TTN) in methanol to give 2-aryl-1-[3, 6-bis(benzyloxy)-2, 4-dimethoxyphenyl]-3, 3-dimethoxypropan-1-ones; these products were converted into 6-hydroxy-5, 7-dimethoxyisoflavones by hydrogenolysis followed by cyclization. The 5-methoxy group in the acetates of the isoflavones was selectively cleaved with 5% (w/v) anhydrous aluminum bromide in acetonitrile to give quantitatively the corresponding 5-hydroxyisoflavones, which were hydrolyzed to 5, 6-dihydroxy-7-methoxy-isoflavones. The acetates were also demethylated to 5, 6, 7-trihydroxyisoflavones with 30% (w/v) anhydrous aluminum chloride in acetonitrile at 70°C for 36-48 h. The spectral properties of these isoflanones were examined and some natural isoflavones were identified.

  3',6'-双(苄氧基)-2',4'-二甲氧基查尔酮，源自3,6-二羟基-2,4-二甲氧基乙酰苯酮的二苄醚，在甲醇中通过氧化性重排与硝酸铊(III)(TTN)反应，生成2-芳基-1-[3,6-双(苄氧基)-2,4-二甲氧基苯基]-3,3-二甲氧基丙酮；这些产物通过氢解后环化转化为6-羟基-5,7-二甲氧基异黄酮。异黄酮的乙酸酯中的5-甲氧基在乙腈中以5%（质量体积比）无水溴化铝选择性裂解，定量得到相应的5-羟基异黄酮，这些异黄酮再水解为5,6-二羟基-7-甲氧基异黄酮。乙酸酯还通过在70°C下乙腈中30%（质量体积比）无水氯化铝处理36-48小时脱甲基化，得到5,6,7-三羟基异黄酮。对这些异黄酮的光谱特性进行了检验，并鉴定了一些天然异黄酮。
• Studies of the Selective<i>O</i>-Alkylation and Dealkylation of Flavonoids. XVIII. A Convenient Method for Synthesizing 3,5,6,7-Tetrahydroxyflavones
  作者：Tokunaru Horie、Takashi Kobayashi、Yasuhiko Kawamura、Isao Yoshida、Hideaki Tominaga、Kazuyo Yamashita

  DOI：10.1246/bcsj.68.2033

  日期：1995.7

  In the demethylation of 6-hydroxy-3,4′,7-trimethoxy-5-(tosyloxy)flavone with anhydrous aluminum bromide, the 5-tosyloxyl group was eliminated with bromination to give 8-bromo-3,6,7-trihydroxy-4′-methoxyflavone as the main product. When anhydrous aluminum chloride was used in the demethylation of the acetate, the 5-tosyloxyl group was cleaved prior to the demethylation to give 5,6,7-trihydroxy-3,4′-dimethoxyflavone. Demethylation of 6-hydroxy-4′,5,7-trimethoxy-3-(tosyloxy)flavone and its acetate with the bromide or chloride afforded the 5,6,7-trihydroxyflavone without the cleavage of the 3-tosyloxyl group, but was not suitable for the general synthesis of the 3,5,6,7-tetrahydroxyflavones because of the difficulty in removing the protecting group. Consequently, it was found that the direct demethylation of 3,6-dihydroxy-5,7-dimethoxyflavones with anhydrous aluminum chloride–sodium iodide in acetonitrile was the most useful general method for synthesizing 3,5,6,7-tetrahydroxyflavones. Additionally, the reported structures of two natural flavones were revised.

  在无水溴化铝的脱甲基反应中，6-羟基-3,4′,7-三甲氧基-5-(托烯氧基)黄酮的5-托烯氧基基团在溴化作用下被消除，生成8-溴-3,6,7-三羟基-4′-甲氧基黄酮作为主要产物。当使用无水氯化铝进行醋酸酯的脱甲基反应时，5-托烯氧基基团在脱甲基前被切断，生成5,6,7-三羟基-3,4′-二甲氧基黄酮。6-羟基-4′,5,7-三甲氧基-3-(托烯氧基)黄酮及其醋酸酯与溴化物或氯化物的脱甲基反应生成5,6,7-三羟基黄酮，而不切断3-托烯氧基基团，但由于去除保护基团的困难，不适合于3,5,6,7-四羟基黄酮的一般合成。因此，发现采用无水氯化铝-碘化钠在乙腈中对3,6-二羟基-5,7-二甲氧基黄酮进行直接脱甲基反应是合成3,5,6,7-四羟基黄酮的最有效的一般方法。此外，修订了两种天然黄酮的已报告结构。