ethyl 7-chloro-1-methylindole-2-carboxylate | 108797-29-1

• 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 7-chloro-1-methylindole-2-carboxylate
• CAS: 108797-29-1
• 化学式: C₁₂H₁₂ClNO₂
• 分子量: 237.686
• InChiKey: XLQBVGBQXJGKSW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  31.2
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  ethyl 7-chloro-1-methylindole-2-carboxylate 在 三乙基硅烷 、 三甲基铝 作用下， 以 三氟乙酸 为溶剂， 反应 3.75h， 生成 7-Chloro-2-(4,5-dihydro-1H-imidazol-2-yl)-1-methyl-2,3-dihydro-1H-indole
  参考文献：
  名称：

  .alpha.2-Adrenergic agonists/antagonists: the synthesis and structure-activity relationships of a series of indolin-2-yl and tetrahydroquinolin-2-yl imidazolines

  摘要：

  The synthesis and alpha 2-adrenergic activity of a series of indolin-2-yl and tetrahydroquinolin-2-yl imidazolines are described. The indolin-2-yl imidazoline 4b was found to possess potent alpha 2-adrenergic agonist and antagonist activity. The modification of the substituents on the indoline ring of 4b has led to the separation of these activities. Substitution on the aromatic ring of 4b with halogen or increasing the size of the N-alkyl substituent of 4b gave alpha 2-adrenergic antagonists without agonist activity. The N-allylindoline 4d is more potent than idazoxan in vitro and is equipotent in vivo, but is less receptor selective (alpha 2 vs. alpha 1) than idazoxan. The cis-1,3-dimethylindolin-2-yl imidazoline 6a is an alpha 2-adrenergic agonist equal in potency to clonidine in vitro, while the trans-1,3-dimethylindolin-2-yl imidazoline 6b is a moderately potent alpha 2-adrenergic antagonist.

  DOI：

  10.1021/jm00392a005
• 作为产物：
  描述：

  ethyl (E)-2-(2-(2-chlorophenyl)hydrazono)propanoate 在 磷酸 、 sodium hydride 作用下， 以 二甲基亚砜 为溶剂， 生成 ethyl 7-chloro-1-methylindole-2-carboxylate
  参考文献：
  名称：

  Indoline analogs of idazoxan: potent .alpha.2-antagonists and .alpha.1-agonists

  摘要：

  The synthesis and alpha-adrenergic activity of a series of substituted 2-imidazolinylindolines are described. Substitution in the indoline ring generated compounds with a spectrum of adrenoceptor antagonist/agonist profiles that proved sensitive to both the nature and position of the substituent. Many of the derivatives possess greater presynaptic antagonist potency than the corresponding benzodioxan 1, dihydrobenzofuran 2, and indan 3 analogues; however, this alpha 2-antagonism is often accompanied by alpha 1-agonist activity. It was not possible to separate alpha 2-antagonist from alpha 1-agonist properties in this series. Compounds of most interest proved to be the N-ethyl 6, 5-chloro-N-methyl 18, and 5-chloro-N-ethyl 23 derivatives, all being potent alpha 2-antagonists and alpha 1-agonists. Substitution at the 4- and 7-position of the indoline ring generally gave compounds with nonselective agonist properties.

  DOI：

  10.1021/jm00400a009

文献信息

• Abnormal Fischer indolization and its related compounds. XXII. Fischer indolization of ethyl pyruvate 2-(2-chloro- and 2,6-dichlorophenyl)methylhydrazones.
  作者：Hisashi ISHII、Yasuoki MURAKAMI、Tsutomu ISHIKAWA

  DOI：10.1248/cpb.38.597

  日期：——

  The Fischer indolization of ethyl pyruvate 2-(2-chlorophenyl)methylhydrazone (17) with HCl/EtOH proceeded rapidly to give six 1-methylindoles, ethyl 7-chloro (19), 6-chloro (22), and unsubstituted (24)-1-methylindole-2-car-boxylates, and dichloro derivatives (21, 23, and 26), whereas no indolization had occurred with the correspinding NH-hydrazone, as described in a previous paper. This result shows that the abnormal Fischer indolization of 2-chloro-phenylhydrazones with HCl/EtOH occurred in an ortho-C6 fashion, in the same manner as that of the corresponding 2-methoxyphenylhydrazones (1 and 2).The Fischer indolization of ethyl pyruvate 2-(2, 6-dichlorophenyl)methylhydrazone (18) with HCl/EtOH did not occur at all, whereas the reaction with ZnCl2/AcOH gave a low yield of ethyl 5, 7-dichloro-3-methylindole-2-carboxylate (36), which was formed by migration of the N-methyl group during Fischer indolization.

  乙酰丙酮的Fischer吲哚化反应中，2-(2-氯苯基)甲基肼酮（17）与HCl/乙醇反应迅速生成六种1-甲基吲哚，包括乙基7-氯（19）、6-氯（22）和未取代（24）-1-甲基吲哚-2-羧酸酯，以及二氯衍生物（21、23和26），而与相应的NH-肼酮之间并未发生吲哚化反应，如前一篇论文所述。该结果表明，2-氯苯基肼酮与HCl/乙醇发生了异常的Fischer吲哚化反应，呈现出ortho-C6的方式，与相应的2-甲氧基苯基肼酮（1和2）的反应方式相同。乙酰丙酮2-(2, 6-二氯苯基)甲基肼酮（18）与HCl/乙醇的Fischer吲哚化反应完全未发生，而与ZnCl2/醋酸反应则得到了少量的乙基5, 7-二氯-3-甲基吲哚-2-羧酸酯（36），这是通过在Fischer吲哚化反应中N-甲基基团的迁移形成的。
• Synthesis and properties of indolo-3,3?-trimethinecyanines substituted in the polymethine chain and heterorings
  作者：T. M. Karymova、P. I. Abramenko、L. G. Kurkina

  DOI：10.1007/bf00633165

  日期：1988.7
• ISHII, HISASHI;MURAKAMI, YASUOKI;ISHIKAWA, TSUTOMU, CHEM. AND PHARM. BULL. , 38,(1990) N, C. 597-604
  作者：ISHII, HISASHI、MURAKAMI, YASUOKI、ISHIKAWA, TSUTOMU

  DOI：——

  日期：——
• KARYMOVA, T. M.;GALIULLINA, T. N.;ABRAMENKO, P. I.;SKVORTSOVA, T. A.;RAKO+, ZH. BCEC. XIM. O-BA, 1986, 31, N 1, 107-108
  作者：KARYMOVA, T. M.、GALIULLINA, T. N.、ABRAMENKO, P. I.、SKVORTSOVA, T. A.、RAKO+

  DOI：——

  日期：——
• KARYMOVA T. M.;ABRAMENKO P. I.;KURKINA L. G., XIMIYA GETEROTSIKL. SOED., 1988, N 7, 897-901
  作者：KARYMOVA T. M.、ABRAMENKO P. I.、KURKINA L. G.

  DOI：——

  日期：——