ethyl 3-methyl-4,5,6,7-tetrahydro-1H-indole-2-carboxylate | 37945-37-2

• 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: ethyl 3-methyl-4,5,6,7-tetrahydro-1H-indole-2-carboxylate
• CAS: 37945-37-2
• 化学式: C₁₂H₁₇NO₂
• mdl: MFCD00817001
• 分子量: 207.272
• InChiKey: VBUIMFUYPUPWSD-UHFFFAOYSA-N

物化性质

• 沸点：
  371.8±42.0 °C(Predicted)
• 密度：
  1.118±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.58
• 拓扑面积：
  42.1
• 氢给体数：
  1
• 氢受体数：
  2

安全信息

• 危险等级：
  IRRITANT
• 海关编码：
  2933990090

反应信息

• 作为反应物：
  描述：

  ethyl 3-methyl-4,5,6,7-tetrahydro-1H-indole-2-carboxylate 在 氢氧化钾 、 三氟乙酸 作用下， 以 甲醇 、 水 为溶剂， 反应 3.17h， 生成 3-Methyl-4,5,6,7-tetrahydro-1H-indole
  参考文献：
  名称：

  带有环外环的卟啉。第三部分。重新评估环戊[b]吡咯在卟啉分子化石合成中的用途。制备与脱氧叶绿体铁卟啉（DPEP）有关的三种II型卟啉。

  摘要：

  环戊并[b]吡咯在卟啉合成中的效用已被重新研究。通过在氯化锡（IV）存在下将α-未取代的吡咯17d的丙酰氯侧链环化来制备6-氧代环戊[b]吡咯18。随后用硼氢化钠还原得到相应的6-羟基化合物10，并与α-未取代的吡咯11a和11b进行进一步的酸催化缩合，以优异的产率得到了新型的6-吡咯基环戊[b]吡咯22a和22b。尝试制备脱氧叶绿素铁卟啉（DPEP; 2），这是一种广泛的沉积卟啉分子化石，使用三茂铁-a，c-比拉二烯路线从这些二吡咯中间体得到的结果是不成功的。然而，使用麦克唐纳缩合法成功地进行了三种相关的内消旋β-乙基卟啉的合成，收率中等至良好。在中间开链四吡咯的环戊烯环稠合位点保留sp 3杂化碳桥在大环形成过程中似乎至关重要，因为这会减少外围取代基和碳环之间的空间排斥。

  DOI：

  10.1016/s0040-4020(01)85734-3
• 作为产物：
  描述：

  3-(4-Chloro-butyl)-4-methyl-1H-pyrrole-2,5-dicarboxylic acid 5-ethyl ester 在 氢碘酸 、 碘 、 碳酸氢钠 、 potassium iodide 、 sodium iodide 作用下， 以 乙醇 、 丙酮 为溶剂， 反应 13.5h， 生成 ethyl 3-methyl-4,5,6,7-tetrahydro-1H-indole-2-carboxylate
  参考文献：
  名称：

  Synthesis of hydrocarbon-strapped porphyrins containing quinone and phenolic groups

  摘要：

  DOI：

  10.1021/jo00233a011

文献信息

• Regioselectivity of pyrrole synthesis from diethyl aminomalonate and 1,3-diketones: further observations
  作者：John B. Paine、Jonathan R. Brough、Kathy K. Buller、Erika E. Erikson

  DOI：10.1021/jo00227a009

  日期：1987.9
• Porphyrins with exocyclic rings. 1. Chemistry of 4,5,6,7-tetrahydro-1H-indoles: synthesis of acetoxy derivatives, dihydroindoles, and novel porphyrins with four exocyclic rings
  作者：Timothy D. Lash、Karla A. Bladel、Craig M. Shiner、Donna L. Zajeski、Rajiv P. Balasubramaniam

  DOI：10.1021/jo00044a012

  日期：1992.8

  A variety of 4,5,6,7-tetrahydro-1H-indoles (THI's) and 4-oxo-4,5,6,7-tetrahydro-1H-indoles (4-oxoTHIs) have been synthesized from cyclohexanone and 1,3-cyclohexanedione, respectively. The THI's reacted regioselectively with lead tetraacetate in acetic acid to give the 7-acetoxy derivatives. The isomeric 4-acetoxyTHI's were prepared by first reducing the corresponding 4-oxoTHI's with sodium borohydride and then reacting the resulting hydroxyTHI' s with acetic acid-pyridine. Both series of acetoxyTHI's underwent elimination of acetic acid when heated with pyridine-acetic anhydride to give dihydroindoles. The 7-acetoxyTHI's were hydrolyzed with potassium hydroxide in methanol-water and carefully neutralized with hydrochloric acid to give the corresponding hydroxyTHI carboxylic acids. Treatment with potassium ferricyanide in refluxing acetic acid gave good yields of tetrapropanoporphyrins when 3-methyl-, 3-ethyl-, or 3-n-propyl substituents were present. The 3-phenylTHI gave variable yields of the corresponding tetraphenylporphyrin. The 3-isopropylTHI gave only trace amounts of porphyrin under these conditions, and the 3-tert-butylTHI failed to give any porphyrin product. THI's with 6-methyl or 6,6-dimethyl substituents were prepared in two steps from 5-methyl-1,3-cyclohexanedione or dimedone, respectively. These compounds also reacted smoothly with lead tetraacetate to give the 7-acetoxy derivatives in high yield. Attempts to convert the 6,6-dimethylTHI's into symmetrical porphyrins were unsuccessful, although the 6-methylTHI gave a mixture of porphyrin stereoisomers in low yield. The influence of alkyl substituents and carbocyclic rings on the cyclotetramerization of THI's is discussed.
• Synthesis of porphyrins with four exocyclic rings from 4,5,6,7-tetrahydroindoles
  作者：Timothy D Lash、Karla A Bladel、Marty C Johnson

  DOI：10.1016/s0040-4039(00)95308-5

  日期：1987.1
• Treibs; Dinelli, Justus Liebigs Annalen der Chemie, 1935, vol. 517, p. 152,160
  作者：Treibs、Dinelli

  DOI：——

  日期：——
• Law, Kam Wah; Lai, Ting-Fong; Sammes, Michael P., Journal of the Chemical Society. Perkin transactions I, 1984, p. 111 - 118
  作者：Law, Kam Wah、Lai, Ting-Fong、Sammes, Michael P.、Katritzky, Alan R.、Mak, Thomas C.W.

  DOI：——

  日期：——

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