methyl (Z)-3-(1H-indol-3-yl)-acrylate | 29953-74-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: methyl (Z)-3-(1H-indol-3-yl)-acrylate
• 英文别名: cis-β-(indol-3-yl)-acrylsaeuremethylester；Methyl-cis-indol-3-acrylat；methyl (Z)-3-(1H-indol-3-yl)prop-2-enoate
• CAS: 29953-74-0
• 化学式: C₁₂H₁₁NO₂
• 分子量: 201.225
• InChiKey: JKVXFZPEUCTHQO-SREVYHEPSA-N

物化性质

• 熔点：
  162-164 °C
• 沸点：
  387.1±17.0 °C(Predicted)
• 密度：
  1.235±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  42.1
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  3-吲哚甲醛 、 甲氧羰基亚甲基三苯基正膦 以 甲苯 为溶剂， 以0.31 g的产率得到吲哚-3-丙烯酸甲酯
  参考文献：
  名称：

  A Thermal Cascade Route to Pyrroloisoindolone and Pyrroloimidazolones

  摘要：

  Flash vacuum pyrolysis (FVP) of indol-1-ylacrylate derivatives 11 and 15 or the isomeric indol-3ylacrylates 21, 22, and 24 at 925 degrees C (0.05 Torr) provides pyrrolo[1,2-alpha]indol-3-ones 2, 18, 28, and 29 in 53-90% yield by a cascade mechanism that involves a sigmatropic migration, elimination, electrocyclization sequence. Pyrrolo[1,2-a]imidazol-5-ones 3 and pyrrolo[1,2-c]imidazol-5-ones 4 were similarly obtained by FVP of corresponding 2,5-unsubstituted imidazol-1-ylacrylates (e.g., 33), with the former isomer predominating in ca. 80:20 ratio. Migration to the 2-position is therefore favored in the initial sigmatropic shift. FVP of 2-substituted imidazol-1-ylacrylates 35, 37, and 51 (825-875 C) instead give pyrrolo[l,2-c]imidazol-5-ones 56-58 only (88-91%), and that of 4,5-disubstituted imidazol-1-ylacrylates 39 and 41 (825-850 degrees C) provide pyrrolo[1,2-a]imidazol-5-ones 59 and 60 exclusively (93-95%), and thus the selectivity of the initial shift can be controlled by the presence of substituents on the imidazole 2- and 5-positions. FVP of the benzimidazole analogues 61 and 62 at 950 C gave the pyrrolo[1,2-a]benzimidazol-l-ones 6 (71%) and 63 (36%), respectively.

  DOI：

  10.1021/jo0712502

文献信息

• A Thermal Cascade Route to Pyrroloisoindolone and Pyrroloimidazolones
  作者：Hamish McNab、Richard G. Tyas

  DOI：10.1021/jo0712502

  日期：2007.11.1

  Flash vacuum pyrolysis (FVP) of indol-1-ylacrylate derivatives 11 and 15 or the isomeric indol-3ylacrylates 21, 22, and 24 at 925 degrees C (0.05 Torr) provides pyrrolo[1,2-alpha]indol-3-ones 2, 18, 28, and 29 in 53-90% yield by a cascade mechanism that involves a sigmatropic migration, elimination, electrocyclization sequence. Pyrrolo[1,2-a]imidazol-5-ones 3 and pyrrolo[1,2-c]imidazol-5-ones 4 were similarly obtained by FVP of corresponding 2,5-unsubstituted imidazol-1-ylacrylates (e.g., 33), with the former isomer predominating in ca. 80:20 ratio. Migration to the 2-position is therefore favored in the initial sigmatropic shift. FVP of 2-substituted imidazol-1-ylacrylates 35, 37, and 51 (825-875 C) instead give pyrrolo[l,2-c]imidazol-5-ones 56-58 only (88-91%), and that of 4,5-disubstituted imidazol-1-ylacrylates 39 and 41 (825-850 degrees C) provide pyrrolo[1,2-a]imidazol-5-ones 59 and 60 exclusively (93-95%), and thus the selectivity of the initial shift can be controlled by the presence of substituents on the imidazole 2- and 5-positions. FVP of the benzimidazole analogues 61 and 62 at 950 C gave the pyrrolo[1,2-a]benzimidazol-l-ones 6 (71%) and 63 (36%), respectively.