(Z)-2-(3,4,5-trimethoxyphenyl)-4-(3,4-methylenedioxyphenyl)-4-oxo-2-butenoic acid | 88775-49-9

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 直链 1,3-二芳基丙烷
• 英文名称: (Z)-2-(3,4,5-trimethoxyphenyl)-4-(3,4-methylenedioxyphenyl)-4-oxo-2-butenoic acid
• 英文别名: 4-(3,4-methylenedioxyphenyl)-4-oxo-2-(3,4,5-trimethoxyphenyl)-2-butenoic acid
• CAS: 88775-49-9
• 化学式: C₂₀H₁₈O₈
• 分子量: 386.358
• InChiKey: WBGMOLLTYLTJPZ-LCYFTJDESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.79
• 重原子数：
  28.0
• 可旋转键数：
  7.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  100.52
• 氢给体数：
  1.0
• 氢受体数：
  7.0

反应信息

• 作为反应物：
  描述：

  (Z)-2-(3,4,5-trimethoxyphenyl)-4-(3,4-methylenedioxyphenyl)-4-oxo-2-butenoic acid 以 丙酮 为溶剂， 反应 48.0h， 以84.1%的产率得到(E)-2-(3,4,5-trimethoxyphenyl)-4-(3,4-methylenedioxyphenyl)-4-oxo-2-butenoic acid
  参考文献：
  名称：

  Photochemistry of 2-(3,4,5-trimethoxyphenyl)-4-(3,4-methylenedioxyphenyl)-4-oxo-2-butenonitrile (β-cyanochalcone) and its related compounds

  摘要：

  Photochemistry of the titled compounds both in solid state and in solution is described. The (Z)-isomers of beta-substituted chalcones (5, 8 and 9) mainly dimerized into topochemically favored single cyclobutane dimers (10, 14 and 13) in solid state photoreactions, while in solution those isomerized into the corresponding (E)-isomers. Interestingly exposure of the (E)-isomer (5E) of beta-cyanochalcone to sunlight in the solid state led to unusual dimerization through isomerization to give an unsymmetrical (E-Z)-dimer (11) along with a symmetrical (Z-Z)-dimer (10) obtainable from the photoreactive (Z)-isomer (5Z-b). The photochemical reactivities of the esters (9) are discussed based on their crystal structures.

  DOI：

  10.1016/s0040-4020(01)85506-x
• 作为产物：
  描述：

  4-(3,4-methylenedioxyphenyl)-4-oxo-2-(3,4,5-trimethoxyphenyl)butyronitrile 在 sodium hydroxide 、 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 甲醇 、 水 、 苯 为溶剂， 反应 28.0h， 生成 (Z)-2-(3,4,5-trimethoxyphenyl)-4-(3,4-methylenedioxyphenyl)-4-oxo-2-butenoic acid
  参考文献：
  名称：

  Photochemistry of 2-(3,4,5-trimethoxyphenyl)-4-(3,4-methylenedioxyphenyl)-4-oxo-2-butenonitrile (β-cyanochalcone) and its related compounds

  摘要：

  Photochemistry of the titled compounds both in solid state and in solution is described. The (Z)-isomers of beta-substituted chalcones (5, 8 and 9) mainly dimerized into topochemically favored single cyclobutane dimers (10, 14 and 13) in solid state photoreactions, while in solution those isomerized into the corresponding (E)-isomers. Interestingly exposure of the (E)-isomer (5E) of beta-cyanochalcone to sunlight in the solid state led to unusual dimerization through isomerization to give an unsymmetrical (E-Z)-dimer (11) along with a symmetrical (Z-Z)-dimer (10) obtainable from the photoreactive (Z)-isomer (5Z-b). The photochemical reactivities of the esters (9) are discussed based on their crystal structures.

  DOI：

  10.1016/s0040-4020(01)85506-x

文献信息

• Studies on the chemical constituents of rutaceous plants. L. Development of a versatile method for the synthesis of antitumor-active benzo(c)phenanthridine alkaloids. 2. Preparation of 2-aryl-1-tetralone derivatives.
  作者：HISASHI ISHII、ERI KAWANABE、KENICHI HARADA、TAKEO DEUSHI、ETSUKO UEDA、TOSHIKO WATANABE、YUHICHIRO ICHIKAWA、MITSUGI SAKAMOTO、TOSHIAKI ISHIDA、TSUTOMU TAKAHASHI、KEIKO NAKAJIMA、TSUTOMU ISHIKAWA

  DOI：10.1248/cpb.31.3039

  日期：——

  The synthetic pathway from 2, 4-bisaryl-4-oxobutyramide (3) to 2-aryl-1-tetralone (4), which is the key intermediate in the Robinson synthesis of antitumor-active benzo [c] phenanthridine alkaloids was improved. Treatment of the model keto-amide (3a) under the reported basic conditions gave a γ-keto-α, β-unsaturated acid (9) and degradation products. Reduction of the 2, 4-bisaryl-4-oxobutyramide (3) with sodium borohydride gave 2, 4-bisaryl-4-hydroxybutyramide (16), which could easily be hydrogenolyzed to give 2, 4-bisarylbutyramide (15). However, this transformation also tended to give a γ-lactam derivative (17), unfortunately. We succeeded in the direct hydrogenolysis of the 2, 4-bisaryl-4-oxobutyramide (3) to the 2, 4-bisarylbutyramide (15), which could be hydrolyzed to the corresponding acid (5) without difficulty. The direct hydrolysis of the 2, 4-bisaryl-4-oxobutyronitrile (2) to the 2, 4-bisaryl-4-oxobutyric acid (6) as reported by Cheng et al. was also examined. Ten 2-aryl-1-tetralones (4) required as starting materials for syntheses of various benzo [c] phenanthridine alkaloids were prepared.

  从 2，4-二芳基-4-氧代丁酰胺（3）到 2-芳基-1-四氢萘酮（4）的合成途径得到了改进，而 2-芳基-1-四氢萘酮是罗宾逊合成具有抗肿瘤活性的苯并[c]菲啶生物碱的关键中间体。在报告的碱性条件下处理模型酮酰胺（3a），可得到γ-酮-α，β-不饱和酸（9）和降解产物。用硼氢化钠还原 2，4-双芳基-4-氧代丁酰胺（3），可得到 2，4-双芳基-4-羟基丁酰胺（16），很容易将其氢解，得到 2，4-双芳基丁酰胺（15）。然而，令人遗憾的是，这种转化也倾向于得到一种 γ-内酰胺衍生物（17）。我们成功地将 2，4-双芳基-4-氧代丁酰胺 (3) 直接氢解为 2，4-双芳基丁酰胺 (15)，后者可以顺利地水解为相应的酸 (5)。此外，还研究了 Cheng 等人报告的 2，4-二芳基-4-氧代丁腈（2）直接水解为 2，4-二芳基-4-氧代丁酸（6）的情况。制备了十种 2-芳基-1-四氢萘酮（4），作为合成各种苯并[c]菲啶生物碱的起始原料。
• Photochemistry of 2-(3,4,5-trimethoxyphenyl)-4-(3,4-methylenedioxyphenyl)-4-oxo-2-butenonitrile (β-cyanochalcone) and its related compounds
  作者：Tsutomu Ishikawa、Nobuyuki Koseki、Tomoko Furukawa、Eri Sakurada (nee Kawanabe)、Chiharu Koseki、Yuki Saito、Koreharu Ogata、Takashi Harayama、Hisashi Ishii

  DOI：10.1016/s0040-4020(01)85506-x

  日期：——

  Photochemistry of the titled compounds both in solid state and in solution is described. The (Z)-isomers of beta-substituted chalcones (5, 8 and 9) mainly dimerized into topochemically favored single cyclobutane dimers (10, 14 and 13) in solid state photoreactions, while in solution those isomerized into the corresponding (E)-isomers. Interestingly exposure of the (E)-isomer (5E) of beta-cyanochalcone to sunlight in the solid state led to unusual dimerization through isomerization to give an unsymmetrical (E-Z)-dimer (11) along with a symmetrical (Z-Z)-dimer (10) obtainable from the photoreactive (Z)-isomer (5Z-b). The photochemical reactivities of the esters (9) are discussed based on their crystal structures.