ethyl 3-phenylindolizine-1-carboxylate | 93315-81-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: ethyl 3-phenylindolizine-1-carboxylate
• CAS: 93315-81-2
• 化学式: C₁₇H₁₅NO₂
• 分子量: 265.312
• InChiKey: RILORIAXQJPTGK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  30.7
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2-吡啶乙酸乙酯 在 selenium(IV) oxide 、 cobalt(II) 5,10,15,20-tetraphenylporphyrin 、 caesium carbonate 、 对甲苯磺酰肼 作用下， 以 1,4-二氧六环 、 苯 为溶剂， 反应 24.0h， 生成 ethyl 3-phenylindolizine-1-carboxylate
  参考文献：
  名称：

  基于钴（II）的2-（重氮甲基）吡啶金属自由基活化，用于自由基转环和环丙烷化

  摘要：

  介绍了一种利用钴催化的自由基活化机理对原位生成的2-（重氮甲基）吡啶进行脱氮环转移/环丙烷化的新催化方法。该方法利用了Co III-卡宾自由基中间体的固有性质，并且是通过自由基激活机制进行脱氮脱环/环丙烷化的第一篇报道，并得到了各种控制实验的支持。（±）-单morine的总合成时间短，证明了金属-金属法的综合优势。

  DOI：

  10.1002/anie.201711209

文献信息

• Dual Gold/Silver Catalysis: Indolizines from 2-Substituted Pyridine Derivatives via a Tandem C(sp³)–H Alkynylation/Iminoauration
  作者：Chunyu Han、Yaowen Liu、Xianhai Tian、Frank Rominger、A. Stephen K. Hashmi

  DOI：10.1021/acs.orglett.1c03667

  日期：2021.12.17

  A dual gold/silver-catalyzed cascade C(sp3)–H alkynylation/iminoauration of 2-substituted pyridines with hypervalent iodine(III) reagents for the synthesis of indolizines is described. This novel reaction involves the formation of an alkynyl Au(III) species, a dual gold/silver-catalyzed C(sp3)–H functionalization, and a subsequent iminoauration process. A number of indolizines bearing diverse functionalities

  描述了双金/银催化级联 C(sp 3 )–H 炔基化/亚氨基化 2-取代吡啶与高价碘 (III) 试剂合成吲哚嗪。这种新颖的反应涉及炔基 Au(III) 物质的形成、金/银双催化的 C(sp 3 )-H 官能化以及随后的亚氨基化过程。以良好到极好的收率制备了许多具有不同功能的吲哚脒。此外，有效地进行了克级反应。
• Pd-Catalyzed C-3 functionalization of indolizines via C–H bond cleavage
  作者：Baoli Zhao

  DOI：10.1039/c2ob25643f

  日期：——

  New transition metal-catalyzed methods for the arylation of indolizines by the direct cleavage of C–H bonds have been developed. A wide range of aryltrifluoroborate salts react with indolizines in the presence of Pd(OAc)2 catalyst and AgOAc oxidant to give the arylated indolizines in high yields. Both electron-donating and electron-withdrawing groups perform smoothly while bromide and chlorine substituents are tolerated. In addition, the indolizines display similar reactivities in the Pd-catalyzed reaction with 3-phenylpropiolic acid to afford the corresponding C-3 alkynylated indolizines. These methods allow the direct functionalization of indolizines in one step.

  开发了新的过渡金属催化方法，通过直接断裂C-H键实现吲哚并环己烯的芳基化。一系列芳基三氟硼酸盐在Pd(OAc)2催化剂和AgOAc氧化剂的存在下与吲哚并环己烯反应，高效地得到芳基化的吲哚并环己烯。供电子和吸电子基团均表现良好，而溴和氯取代基也可耐受。此外，吲哚并环己烯在Pd催化反应中与3-苯基丙炔酸显示出相似的反应活性，从而获得相应的C-3炔基化吲哚并环己烯。这些方法使得吲哚并环己烯能够在一步中直接进行官能团化。
• Iodine-Mediated Oxidative Cyclization of 2-(Pyridin-2-yl)acetate Derivatives with Alkynes: Condition-Controlled Selective Synthesis of Multisubstituted Indolizines
  作者：Lisheng He、Yuzhu Yang、Xiaolan Liu、Guangyan Liang、Chunyan Li、Daoping Wang、Weidong Pan

  DOI：10.1055/s-0039-1690229

  日期：2020.2

  An iodine-mediated oxidative cyclization reaction between 2-(pyridin-2-yl)acetate derivatives and different alkynes has been developed, which provides regioselective and chemoselective syntheses of multiply substituted indolizines under modified reaction conditions. Plausible mechanisms have been proposed to explain the selective syntheses of indolizines. This protocol can be also applied to the stepwise

  已经开发出碘介导的2-（吡啶-2-基）乙酸酯衍生物与不同炔烃之间的碘介导的氧化环化反应，该反应在修饰的反应条件下提供了多重取代的吲哚嗪的区域选择性和化学选择性合成。已经提出了合理的机制来解释吲哚嗪的选择性合成。该方案也可以应用于2,2'-联吲哚并逐步合成。
• Metal-free synthesis of indolizines through oxidative C C and C N bond formations of C (sp 3 ) H bonds
  作者：N. Naresh Kumar Reddy、Darapaneni Chandra Mohan、Subbarayappa Adimurthy

  DOI：10.1016/j.tetlet.2016.01.082

  日期：2016.3

  catalyzed synthesis of indolizine-1-carboxylates through oxidative CC and CN bond formations by the reaction of 2-pyridyl acetates with alkynes and alkenes without metal, oxidant, and base. This procedure is compatible with a broad range of functional groups in both alkynes and alkenes with good yields. The reaction proceeds through a tandem CC bond formation followed by an intramolecular cyclization

  碘催化乙酸2-吡啶酯与炔烃和没有金属，氧化剂和碱的烯烃的反应，通过氧化C C和C N键的形成，催化碘吲哚-1-羧酸酯的合成。该方法与炔烃和烯烃中的多种官能团相容，且收率良好。该反应通过串联C C键的形成进行，随后进行分子内环化。
• Cu-catalyzed transannulation reaction of pyridotriazoles with terminal alkynes under aerobic conditions: efficient synthesis of indolizines
  作者：V. Helan、A. V. Gulevich、V. Gevorgyan

  DOI：10.1039/c4sc03358b

  日期：——

  Cu(I)-catalyzed denitrogenative transannulation reaction of pyridotriazoles with terminal alkynes en route to indolizines was developed. Compared to the previously reported Rh-catalyzed transannulation reaction, this Cu-catalyzed method features aerobic conditions and a much broader scope of pyridotriazoles and alkynes.

  开发了一种 Cu( I ) 催化的吡啶并三唑与末端炔烃脱氮转环反应生成中氮茚的过程。与之前报道的Rh催化转环反应相比，这种Cu催化方法具有需氧条件以及更广泛的吡啶并三唑和炔烃范围。