2-(4-methoxy-phenyl)-1H-pyrrole-3-carboxylic acid ethyl ester | 647836-43-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: 2-(4-methoxy-phenyl)-1H-pyrrole-3-carboxylic acid ethyl ester
• 英文别名: 2-(4-methoxyphenyl)-1H-pyrrole-3-carboxylic acid ethyl ester；ethyl 2-(4-methoxyphenyl)-1H-pyrrole-3-carboxylate；1H-Pyrrole-3-carboxylic acid, 2-(4-methoxyphenyl)-, ethyl ester
• CAS: 647836-43-9
• 化学式: C₁₄H₁₅NO₃
• 分子量: 245.278
• InChiKey: GFJPHNRCGYSQLJ-UHFFFAOYSA-N

物化性质

• 沸点：
  454.7±40.0 °C(Predicted)
• 密度：
  1.159±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  18
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.21
• 拓扑面积：
  51.3
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  反式-4-氧基-2-丁烯酸乙酯 在 silver hexafluoroantimonate 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 1.17h， 生成 2-(4-methoxy-phenyl)-1H-pyrrole-3-carboxylic acid ethyl ester
  参考文献：
  名称：

  A New Pyrrole Synthesis via Silver(I)-Catalyzed Cycloaddition of Vinylogous Diazoester and Nitrile

  摘要：

  A new synthesis of di- and trisubstituted pyrroles was achieved by treating in situ generated vinylogous diazoesters and readily available nitriles with a catalytic amount of silver(I) antimony hexafluoride at room temperature. This method showcased the potential of utilizing silver(I) carbenoids in preparing heterocyclic compounds.

  DOI：

  10.1021/ol400062w

文献信息

• Regioselective Synthesis of Functionalized Pyrroles<i>via</i>Gold(I)-Catalyzed [3+2] Cycloaddition of Stabilized Vinyl Diazo Derivatives and Nitriles
  作者：Giacomo Lonzi、Luis A. López

  DOI：10.1002/adsc.201300346

  日期：2013.7.8

  The reaction of nitriles with alkenyldiazo compounds in the presence of gold catalysts provides functionalized pyrrole derivatives in moderate to high yields. This formal [3+2] cyclization reaction takes place with complete regioselectivity. The observed regiochemical outcome suggests the attack of the nitrile to the terminal position of the alkenylgold carbenoid (vinylogous reactivity). A broad range

  在金催化剂的存在下腈与烯基重氮化合物的反应以中等至高产率提供官能化的吡咯衍生物。该正式的[3 + 2]环化反应以完全的区域选择性进行。观察到的区域化学结果表明腈对烯基金类胡萝卜素的末端位置的攻击（葡萄酒反应性）。广泛的腈（包括带有官能团的腈）与这种环化反应相容。
• One-Pot Synthesis of 3-Substituted 2-Arylpyrrole in Aqueous Media via Addition–Annulation of Arylboronic Acid and Substituted Aliphatic Nitriles
  作者：Md Yousuf、Susanta Adhikari

  DOI：10.1021/acs.orglett.7b00490

  日期：2017.5.5

  Pd(II)-catalyzed C–C coupling reactions between substituted aliphatic nitriles and arylboronic acids followed by in situ cyclodehydration have been employed for the first time to synthesize a wide variety of 3-substituted 2-aryl-1H-pyrroles in aqueous acetic acid. This one-pot synthesis is green, and it conforms to atom economy. The structures of two representative pyrroles, 3k and 5f, were confirmed

  钯（II）催化的取代脂肪族腈与芳基硼酸之间的CC偶联反应，然后进行原位环脱水，首次用于在乙酸水溶液中合成各种3-取代的2-芳基-1 H-吡咯酸。这种一锅合成法是绿色的，符合原子经济性。X射线晶体学分析证实了两种代表性的吡咯3k和5f的结构。
• 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]