2-methyl-4,5,6,7-tetrahydro-1H-indole-3-carboxylic acid ethyl ester | 24363-49-3

• 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: 2-methyl-4,5,6,7-tetrahydro-1H-indole-3-carboxylic acid ethyl ester
• 英文别名: ethyl 2-methyl-4,5,6,7-tetrahydro-1H-indole-3-carboxylate；ethyl 4,5,6,7-tetrahydro-2-methyl-1H-indole-3-carboxylate；2-methyl-4,5,6,7-tetrahydro-indole-3-carboxylic acid ethyl ester；2-Methyl-4,5,6,7-tetrahydro-indol-3-carbonsaeure-aethylester；Ethyl-2-methyl-4,5,6,7-tetrahydroindol-3-carboxylat；2-Methyl-3-ethoxycarbonyl-4,5,6,7-tetrahydro-indol
• CAS: 24363-49-3
• 化学式: C₁₂H₁₇NO₂
• 分子量: 207.272
• InChiKey: KIJNMEYGCXHNRS-UHFFFAOYSA-N

物化性质

• 熔点：
  132 °C
• 沸点：
  404.3±45.0 °C(Predicted)
• 密度：
  1.118±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 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

反应信息

• 作为反应物：
  描述：

  2-methyl-4,5,6,7-tetrahydro-1H-indole-3-carboxylic acid ethyl ester 在 sodium hydroxide 作用下， 生成 2-methyl-4,5,6,7-tetrahydro-indole-3-carboxylic acid
  参考文献：
  名称：

  Treibs; Dinelli, Justus Liebigs Annalen der Chemie, 1935, vol. 517, p. 152,160

  摘要：

  DOI：
• 作为产物：
  描述：

  (Z)-3-iodo-but-2-enoic acid ethyl ester 在 copper(l) iodide 、 1,10-菲罗啉 、 caesium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 46.0h， 生成 2-methyl-4,5,6,7-tetrahydro-1H-indole-3-carboxylic acid ethyl ester
  参考文献：
  名称：

  Copper-Catalyzed Vinylation of Hydrazides. A Regioselective Entry to Highly Substituted Pyrroles

  摘要：

  A modular route to highly substituted pyrroles has been developed. This transformation consists of two sequential copper-catalyzed vinylations of bis-Boc-hydrazine followed by thermal rearrangement/cyclization. A wide variety of functionalized pyrroles can be prepared in a selective manner from simple and easily accessible precursors.

  DOI：

  10.1021/ol062978s

文献信息

• The synthesis of pyrroles and oxazoles based on gold α-imino carbene complexes
  作者：Nicole S. Y. Loy、Subin Choi、Sunggak Kim、Cheol-Min Park

  DOI：10.1039/c6cc01742h

  日期：——

  Cationic gold complexes of [small alpha]-oximimino carbenes have been identified to react with nucleophiles with attenuated reactivity including enol ethers and nitriles. These findings allowed us to develop highly efficient synthesis...

  已经发现，小α-氧亚氨基氨基甲酸酯的阳离子金络合物可以与反应性减弱的亲核试剂反应，包括烯醇醚和腈。这些发现使我们得以开发出高效的合成方法。
• Efficient synthesis of pyrroles and 4,5,6,7-tetrahydroindoles via palladium-catalyzed oxidation of hydroxy-enamines
  作者：Yutaka Aoyagi、Toshihiko Mizusaki、Masahiro Shishikura、Takashi Komine、Tokuji Yoshinaga、Haruko Inaba、Akihiro Ohta、Koichi Takeya

  DOI：10.1016/j.tet.2006.06.070

  日期：2006.9

  Facile and one-pot synthetic route of poly-substituted pyrroles and 4-oxo-4,5,6,7-tetrahydroindoles is established, which consists of three steps: (1) palladium-catalyzed oxidation of hydroxy-enamines by using tetrakis(triphenylphosphine)palladium and mesityl bromide oxidation system, (2) intramolecular cyclization, and (3) dehydration.

  建立了多取代的吡咯和4-oxo-4,5,6,7-四氢吲哚的简便，一锅合成路线，该路线包括三个步骤：（1）钯催化的四胺氧化羟基烯胺（三苯基膦）钯和异丁基溴的氧化系统，（2）分子内环化和（3）脱水。
• A Powerful New Strategy for Diversity-Oriented Synthesis of Pyrroles from Donor−Acceptor Cyclopropanes and Nitriles
  作者：Ming Yu、Brian L. Pagenkopf

  DOI：10.1021/ol036180+

  日期：2003.12.1

  Lewis acid activated donor-acceptor cyclopropanes react with aliphatic, aromatic, and alpha,beta-unsaturated nitriles in a novel cascade [3 + 2] dipolar cycloaddition, dehydration, and tautomerization sequence to afford pyrroles in moderate to excellent overall yield. This cost-effective and regiospecific method is ideally suited for the preparation of combinatorial libraries. [reaction: see text]

  路易斯酸活化的供体-受体环丙烷与脂肪族，芳香族和α，β-不饱和腈以新型级联[3 + 2]偶极环加成，脱水和互变异构顺序反应，以中等到极好的总收率提供吡咯。这种具有成本效益和区域特异性的方法非常适合于制备组合文库。[反应：看文字]
• The synthesis and chemistry of azolenines. Part 18. Preparation of 3-ethoxycarbonyl-3-pyrroles the paal-knorr reaction, and sigmatropic rearrangements involving competitive ester migrations to c-2, c-4 and n.
  作者：Chiu Pak-Kan、Sannes Michael P.

  DOI：10.1016/s0040-4020(01)81514-3

  日期：1990.1

  N-esters (13) of 1H-pyrroles via competitive [1,5]sigmatropic rearrangements. Isolable intermediate 2H-pyrrole-2-carboxylic esters (l2) are converted similarly into the same products, under the same conditions. Detection of 3H-pyrroles (4) as intermediates in the latter reaction demonstrates for the first time the reversibility of the thermal 2H-pyrrole to 3H-pyrrole interconversion.

  3H-吡咯-3-羧酸酯（4）在某些情况下与具有外环双键的异构体（5）和（6）一起通过适当取代的2-乙氧基羰基-1,4-二酮（1）的环化反应制备用液氨，然后在沸腾溶剂中用铝矾土将可分离的2-羟基-3,4-二氢-2H-吡咯中间体（2）和（3）脱水。在甲苯或对二甲苯中长时间加热会通过竞争性的[1,5]σ重排将3H吡咯（4）定量转化为1H-吡咯的异构体4酯（11）和N-酯（13）。在相同条件下，将可分离的中间体2H-吡咯-2-羧酸酯（l2）类似地转化为相同的产物。
• Reaction of Allenyl Esters with Sodium Azide:  An Efficient Synthesis of <i>E</i>-Vinyl Azides and Polysubstituted Pyrroles
  作者：Xian Huang、Ruwei Shen、Tiexin Zhang

  DOI：10.1021/jo062376m

  日期：2007.2.1

  The nucleophilic addition of sodium azide to 1,2-allenyl esters can generate vinyl azides in excellent yields with excellent regio- and stereoselectivities. Moreover, pyrroles are synthesized using 1-allyllic 1,2-allenyl esters as substrates in t-BuOH at 65 °C. The sequential reaction for pyrroles is developed on the basis of a novel domino process involving nucleophilic addition, cycloaddition, denitrogenation

  将叠氮化钠亲核加成到1,2-烯基酯上可以以优异的收率和极好的区域选择性和立体选择性生成叠氮化乙烯基。此外，在65°C的t -BuOH中，使用1-烯丙基1,2-烯基酯作为底物合成吡咯。在涉及亲核加成，环加成，脱氮和芳构化的新型多米诺过程的基础上开发了吡咯的顺序反应。