1-methyl-2-(3,5-dimethoxyphenyl)-1H-pyrrole | 1262588-76-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: 1-methyl-2-(3,5-dimethoxyphenyl)-1H-pyrrole
• 英文别名: 2-(3,5-dimethoxyphenyl)-1-methyl-1H-pyrrole；2-(3,5-Dimethoxyphenyl)-1-methylpyrrole
• CAS: 1262588-76-0
• 化学式: C₁₃H₁₅NO₂
• 分子量: 217.268
• InChiKey: URVNXNVIZKOMRD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  23.4
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  3,5-二甲氧基苯酚 在 bis-triphenylphosphine-palladium(II) chloride 、 potassium phosphate monohydrate 、 三乙胺 作用下， 以 二氯甲烷 、 叔丁醇 为溶剂， 反应 15.25h， 生成 1-methyl-2-(3,5-dimethoxyphenyl)-1H-pyrrole
  参考文献：
  名称：

  Aryl/heteroaryl pentafluorobenzenesulfonates (ArOPFBs): new electrophilic coupling partners for room temperature Suzuki–Miyaura cross-coupling reactions

  摘要：

  The first cross-coupling reaction between aryl/heteroaryl pentafluorobenzenesulfonates and aryl/heteroaryl boronic acids under mild conditions is described. The successful synthesis of highly ortho substituted biaryls and high chemoselectivity of these bench stable intermediates over tosylates, triflates, mesylates, and chlorides increases its scope as a valuable cross-coupling partner. The generality of this protocol was further extended to other boron containing nucleophiles (boronates, trifluoroborates) and alkyl boronic acids. (C) 2015 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2015.07.033

文献信息

• Palladium-Catalyzed Indole, Pyrrole, and Furan Arylation by Aryl Chlorides
  作者：Enrico T. Nadres、Anna Lazareva、Olafs Daugulis

  DOI：10.1021/jo1018969

  日期：2011.1.21

  The palladium-catalyzed direct arylation of indoles, pyrroles, and furans by aryl chlorides has been demonstrated. The method employs a palladium acetate catalyst, 2-(dicyclohexylphosphino)-biphenyl ligand, and an inorganic base. Electron-rich and electron-poor aryl chlorides as well as chloropyridine coupling partners can be used, and arylated heterocycles are obtained in moderate to good yields.

  钯催化的吲哚、吡咯和呋喃由芳基氯化物直接芳基化已得到证实。该方法使用乙酸钯催化剂、2-(二环己基膦)-联苯配体和无机碱。可以使用富电子和缺电子的芳基氯化物以及氯吡啶偶联伙伴，并以中等至良好的产率获得芳基化杂环。要获得最佳结果，需要优化碱、配体和溶剂。
• Visible-light photocatalyzed synthesis of 2-aryl N -methylpyrroles, furans and thiophenes utilizing arylsulfonyl chlorides as a coupling partner
  作者：Palani Natarajan、Anu Bala、S.K. Mehta、K.K. Bhasin

  DOI：10.1016/j.tet.2016.03.087

  日期：2016.5

  cross-coupling reactions of arylsulfonyl chloride with N-methylpyrrole, furan, thiophene and their derivatives have been achieved in moderate to good yields at room temperature. A plausible mechanism has been proposed for the reaction. The arylation takes place at the C–H bond (C2–H or C5–H) next to the heteroatom with a high regioselective manner! Moreover, arylsulfonyl chlorides utilized in this study are inexpensive

  可见光（蓝色LED灯：hν= 425±15 nm）在室温下以中等至良好的产率实现了芳基磺酰氯与N-甲基吡咯，呋喃，噻吩及其衍生物的光催化交叉偶联反应。已经提出了对该反应的合理机制。芳基化反应在杂原子旁的C–H键（C 2 –H或C 5 –H）上以高区域选择性的方式发生！此外，与以前报道的通过可见光光催化条件合成杂联芳基的方法中通常用作偶联伙伴的重氮盐相比，本研究中使用的芳基磺酰氯价格便宜，对环境无害，并且对温度，湿度和空气相对更稳定。
• Visible‐Light‐Induced N‐Heterocyclic Carbene‐Catalyzed Single Electron Reduction of Mono‐Fluoroarenes
  作者：He Sheng、Qiang Liu、Bei‐Bei Zhang、Zhi‐Xiang Wang、Xiang‐Yu Chen

  DOI：10.1002/anie.202218468

  日期：2023.3.13

  An N-heterocyclic carbene (NHC)/tBuOK system was reported for the photoreduction of mono-fluoroarenes. Mechanistic studies suggest the generation of NHC radical anion as a potent reductant, and the Ar−F bond cleavage proceeds via a concerted mechanism, where single electron transfer, Ar−F bond cleavage and KF bond formation take place simultaneously.

  据报道，N-杂环卡宾 (NHC)/ t BuOK 系统可用于单氟芳烃的光还原。机理研究表明，NHC 自由基阴离子的产生是一种有效的还原剂，Ar-F 键断裂通过协同机制进行，其中单电子转移、Ar-F 键断裂和 KF 键形成同时发生。