butyl indolizine-1-carboxylate | 1200204-20-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯并吡啶类
• 英文名称: butyl indolizine-1-carboxylate
• 英文别名: n-butyl indolizine-1-carboxylate
• CAS: 1200204-20-1
• 化学式: C₁₃H₁₅NO₂
• 分子量: 217.268
• InChiKey: UOUSBLMAXATHLD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  16
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  30.7
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2,2-dibromostyrene 、 butyl indolizine-1-carboxylate 在 silver(I) acetate 、 cesium acetate 、 palladium diacetate 、 双(2-二苯基磷苯基)醚 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 24.0h， 以70%的产率得到n-butyl 3-(phenylethynyl)indolizine-1-carboxylate
  参考文献：
  名称：

  钯催化的吲哚嗪与（2,2-二溴乙烯基）芳烃的直接 C-3 炔基化反应

  摘要：

  摘要 开发了在钯催化剂存在下，吲哚嗪与（2,2-二溴乙烯基）芳烃直接进行 C-3 炔基化反应。这种新颖的协议显示了对吲哚嗪和二溴烯烃的广泛底物范围。该方法还具有高效和良好的官能团耐受性的特点。图形概要

  DOI：

  10.1080/00397911.2014.882004

文献信息

• 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。
• Heck-Type Cross-Dehydrogenative Coupling Reactions of Indolizines at the 3-Position with Electron-Deficient Alkenes through Palladium-Catalyzed CH Activation
  作者：Huayou Hu、Yun Liu、Hao Zhong、Yulan Zhu、Chao Wang、Min Ji

  DOI：10.1002/asia.201101050

  日期：2012.5

  A cross‐dehydrogenative coupling reaction of indolizines with electron‐deficient alkenes for the synthesis of 3‐alkenyl‐substituted indolizines has been reported. The reaction takes place at the 3‐position selectively through palladium‐catalyzed CH activation, following a Heck‐type cross‐coupling reaction under mild and ligand‐free conditions. Furthermore, the reaction mechanism of the PdII/Pd0 catalytic

  据报道，吲哚嗪与缺乏电子的烯烃发生交叉脱氢偶联反应，可合成3-烯基取代的吲哚嗪。在温和且无配体的条件下发生Heck型交叉偶联反应后，该反应通过钯催化的CH活化选择性地在3位发生。此外，还通过1 H NMR光谱证实了Pd II / Pd 0催化途径的反应机理。
• Highly Regioselective Palladium-Catalyzed Oxidative Coupling of Indolizines and Vinylarenes via C−H Bond Cleavage
  作者：Yuzhu Yang、Kai Cheng、Yuhong Zhang

  DOI：10.1021/ol902315w

  日期：2009.12.17

  A highly regioselective oxidative coupling reaction between indolizines and vinylarenes has been accomplished in the presence of palladium catalysts to give only the branched α-product in high efficiency. The regioselectivity is promoted significantly by bidentate nitrogen ligands.

  在钯催化剂的存在下，吲哚嗪和乙烯基芳烃之间的高度区域选择性的氧化偶联反应已经完成，从而仅高效地给出了支链α-产物。双齿氮配体显着提高了区域选择性。
• Iron-Catalysed C-3 Functionalisation of Indolizines via C–H Bond Cleavage
  作者：Xu Shao-hong

  DOI：10.3184/174751912x13383077583357

  日期：2012.8

  The synthesis of 3,3'-(arylmethylene)diindolizine with a FeCl3·6H2O catalyst has been achieved with excellent efficiency at room temperature. Various indolizines were prepared by the reaction with either aromatic or aliphatic aldehydes to produce di- or triheteroarylmethanes.

  以FeCl3·6H2O为催化剂，在室温下合成了3,3'-(芳基亚甲基)二茚茚。通过与芳香醛或脂肪醛反应生成二-或三杂芳基甲烷，制备了各种吲哚嗪。
• Palladium catalyzed oxidative Suzuki coupling reaction of indolizine at the 3-position using oxygen gas as the only oxidant
  作者：Huayou Hu、Yong Liu、Juan Xu、Yuhe Kan、Chao Wang、Min Ji

  DOI：10.1039/c4ra03799e

  日期：——

  Stoichiometric metal oxidant applied in the functionalization of indolizine at the 3-position through C–H activation in a previous report was found to increase the cost of the synthesis and worsen the environmental pollution. In this paper, we developed a Pd(OAc)2/O2 catalytic system with or without ligands for an oxidative Suzuki coupling reaction of indolizine at the 3-position through C–H activation. As reported in the literature, some indolizines dimerized when catalyzed by palladium acetate under ligand-free conditions. However, we found that the dimerization of 2,3-unsubstituted indolizines was inhibited by the addition of ligands. Based on this finding, the arylation of these indolizines can be successfully achieved via a Pd(OAc)/O2 system using picolinic acid as a ligand. 1,2-disubstituted indolizines that do not easily dimerize can react smoothly with arylboronic acids under ligand-free conditions. Furthermore, broad group tolerance was shown in both indolizine and arylboronic acid. Finally, this method has the advantages of mild conditions, a broad array of starting materials and the use of a green oxidant.

  之前的报告发现，在通过 C-H 活化对吲哚利嗪进行 3 位官能化反应时，使用的化学计量金属氧化剂会增加合成成本并加剧环境污染。本文开发了一种含配体或不含配体的 Pd(OAc)2/O2 催化体系，用于通过 C-H 活化进行吲哚利嗪 3 位的氧化铃木偶联反应。据文献报道，在无配体条件下，一些吲嗪类化合物在醋酸钯催化下会发生二聚反应。然而，我们发现加入配体后，2,3-未取代的吲嗪类化合物的二聚化受到了抑制。基于这一发现，我们可以使用吡啶甲酸作为配体，通过 Pd(OAc)/O2 系统成功实现这些吲嗪类化合物的芳基化。在无配体条件下，不易发生二聚化的 1,2-二取代吲嗪类化合物能与芳基硼酸顺利发生反应。此外，吲哚利嗪和芳基硼酸都具有广泛的基团耐受性。最后，该方法还具有条件温和、起始材料广泛和使用绿色氧化剂等优点。