摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

3',4'-bis(benzyloxy)-6-hydroxy-5,7-dimethoxyflavone | 27181-96-0

中文名称
——
中文别名
——
英文名称
3',4'-bis(benzyloxy)-6-hydroxy-5,7-dimethoxyflavone
英文别名
6-Hydroxy-5,7-dimethoxy-3',4'-dibenzyloxy-flavon;2-(3,4-bis-benzyloxy-phenyl)-6-hydroxy-5,7-dimethoxy-chromen-4-one;2-[3,4-Bis(phenylmethoxy)phenyl]-6-hydroxy-5,7-dimethoxychromen-4-one
3',4'-bis(benzyloxy)-6-hydroxy-5,7-dimethoxyflavone化学式
CAS
27181-96-0
化学式
C31H26O7
mdl
——
分子量
510.543
InChiKey
UKABHAQIPSRRQA-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    5.7
  • 重原子数:
    38
  • 可旋转键数:
    9
  • 环数:
    5.0
  • sp3杂化的碳原子比例:
    0.13
  • 拓扑面积:
    83.4
  • 氢给体数:
    1
  • 氢受体数:
    7

上下游信息

  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    3',4'-bis(benzyloxy)-6-hydroxy-5,7-dimethoxyflavone 在 palladium on activated charcoal 吡啶三氯化铝氢气potassium carbonate 作用下, 以 甲醇乙酸乙酯N,N-二甲基甲酰胺丙酮乙腈 为溶剂, 反应 9.5h, 生成
    参考文献:
    名称:
    具有烷氧基的5,6,7-和5,7,8-三加氧的3',4'-二羟基黄酮的合成及其对花生四烯酸5-脂氧合酶的抑制活性。
    摘要:
    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。
    DOI:
    10.1021/jm00161a021
  • 作为产物:
    参考文献:
    名称:
    Studies of the SelectiveO-Alkylation and Dealkylation of Flavonoids. XVIII. A Convenient Method for Synthesizing 3,5,6,7-Tetrahydroxyflavones
    摘要:
    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。
    DOI:
    10.1246/bcsj.68.2033
点击查看最新优质反应信息

文献信息

  • Studies of the selective O-alkylation and dealkylation of flavonoids. VIII. Synthesis of pedaliin.
    作者:TOKUNARU HORIE、MASAO TSUKAYAMA、HIROKI KOURAI、YOSHIKAZU NAKAYAMA、MITSURU NAKAYAMA
    DOI:10.1248/cpb.34.30
    日期:——
    3', 4'-Bis(benzyloxy)-6-hydroxy-5, 7-dimethoxyflavone (15) was obtained from 6-hydroxy-2, 4-dimethoxy-3-(methoxymethoxy)acetophenone (13) via 6'-hydroxy-2', 4'-dimethoxy-3'-methoxy-methoxy-2-[3, 4-bis(benzyloxy)benzoyl]acetophenone (14). The 5-methoxyl group of the acetate (16) of the flavone (15) was selectively split with about 5% (w/v) anhydrous aluminum chloride in acetonitrile to give 6-acetoxy-3', 4'-bix(benzyloxy)-5-hydroxy-7-methoxyflavone (17). The 5-hydroxyflavone (17) was converted into 3', 4', 5-tris(benzyloxy)-6-hydroxy-8-methoxyflavone (20) by benzylation and hydrolysis. Condensation of the 6-hydroxyflavone (20) with 2, 3, 4, 6-tetra-O-acetyl-α-D-glucosyl bromide, folowed by hydrolysis of the resultant compound afforded the corresponding 6-O-β-D-glucoside (22), which was converted into 3', 4', 5, 6-tetrahydroxy-7-methoxyflavone 6-O-β-D-glucoside (pedaliin) (1) by hydrogenolysis. The process should be useful as a general method for synthesizing 6-O-glucosides of 5, 6-dihydroxy-7-methoxyflavones.
    3', 4'-双(苄氧基)-6-羟基-5, 7-二甲氧基黄酮(15)是由6-羟基-2, 4-二甲氧基-3-(甲氧基甲氧基)苯乙酮(13)通过6'-羟基得到-2', 4'-二甲氧基-3'-甲氧基-甲氧基-2-[3, 4-双(苄氧基)苯甲酰基]苯乙酮(14)。黄酮(15)的乙酸酯(16)的5-甲氧基用约5%(w/v)无水氯化铝的乙腈溶液选择性裂解,得到6-乙酰氧基-3',4'-联(苄氧基) -5-羟基-7-甲氧基黄酮(17)。通过苄基化和水解将5-羟基黄酮(17)转化为3',4',5-三(苄氧基)-6-羟基-8-甲氧基黄酮(20)。 6-羟基黄酮(20)与2,3,4,6-四-O-乙酰基-α-D-葡萄糖基溴缩合,然后水解所得化合物,得到相应的6-O-β-D-葡萄糖苷(22),通过氢解转化为3',4',5,6-四羟基-7-甲氧基黄酮6-O-β-D-葡萄糖苷(pedaliin)(1)。该方法应可作为合成 5, 6-二羟基-7-甲氧基黄酮的 6-O-葡萄糖苷的通用方法。
  • 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<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。
查看更多