5-(3,4-dimethoxyphenyl)-3,4-dihydro-2H-pyrrole | 91640-98-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 5-(3,4-dimethoxyphenyl)-3,4-dihydro-2H-pyrrole
• 英文别名: 5-(3,4-dimethoxy-phenyl)-3,4-dihydro-2H-pyrrole；5-(3,4-Dimethoxy-phenyl)-3,4-dihydro-2H-pyrrol；2-(3,4-Dimethoxy-phenyl)-Δ¹-pyrrolin
• CAS: 91640-98-1
• 化学式: C₁₂H₁₅NO₂
• 分子量: 205.257
• InChiKey: GUNMASZTYNABNM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  30.8
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  5-(3,4-dimethoxyphenyl)-3,4-dihydro-2H-pyrrole 在 碳酸氢钠 作用下， 以 水 、 丙酮 为溶剂， 反应 0.25h， 生成 2-(3,4-Dimethoxyphenyl)-1-methylpyrrolidine-2-carbonitrile
  参考文献：
  名称：

  叔烯丙胺的异构化和季铵化的扩环重排

  摘要：

  1,1-Diphenyl-1-piperidino-2-propene 可以通过热和环戊酮 / NaI 重排为 1,1-diphenyl-3-piperidino-1-propene。异喹啉 8 根据相同的原理得到苯并佐辛 9，而 2-乙烯基吡咯烷 16 只能用 CH3I 季铵化得到氮杂环庚烷碘化物 17。使用苄基溴，根据测试条件，形成了具有不同位置的双键的 16 个季铵 N-苄基氮杂环庚烷溴化物。

  DOI：

  10.1002/ardp.19823150904
• 作为产物：
  描述：

  4-(3,4-dimethoxyphenyl)-4-oxobutanenitrile 在 甲醇 、 镍 作用下， 生成 5-(3,4-dimethoxyphenyl)-3,4-dihydro-2H-pyrrole
  参考文献：
  名称：

  Knott, Journal of the Chemical Society, 1948, p. 196

  摘要：

  DOI：

文献信息

• Intramolecular Cyclization of Brominated Oxime Ether Promoted with Ytterbium(0) to the Synthesis of Cyclic Imines
  作者：Yiqiong Wang、Fei Huang、Songlin Zhang

  DOI：10.1002/ejoc.202000678

  日期：2020.8.31

  A general, efficient, and experimentally simple one‐pot new method for the synthesis of cyclic imines through intramolecular cyclization of brominated oxime ether promoted by ytterbium(0) was reported for the first time. In this new strategy for the construction of cyclic imines, the N–O bond is used as a receptor of ytterbium reagent rather than as a source of N‐centred radical.

  首次报道了通过，（0）促进的溴化肟醚分子内环化合成环亚胺的通用，高效且实验简单的新方法。在这种构建环状亚胺的新策略中，N-O键用作as试剂的受体，而不是N-中心自由基的来源。
• Iminyl Radicals by Reductive Cleavage of N–O Bond in Oxime Ether Promoted by SmI₂: A Straightforward Synthesis of Five-Membered Cyclic Imines
  作者：Fei Huang、Songlin Zhang

  DOI：10.1021/acs.orglett.9b02740

  日期：2019.9.20

  A new generation method of N-centered radicals from the reductive cleavage of the N-O bond in oxime ether promoted by SmI2 is reported for the first time. The in-situ-generated N-centered radicals underwent intramolecular cyclization to afford five-membered cyclic imines in two manners: N-centered radical addition and N-centered anion nucleophilic substitution. From a synthetic point of view, an efficient

  首次报道了由SmI2促进的肟醚中NO键的还原性裂解形成的一种以N为中心的自由基的新方法。原位生成的N中心自由基经过分子内环化以两种方式提供五元环亚胺：N中心自由基加成和N中心阴离子亲核取代。从合成的观点出发，开发了一种有效的五元环亚胺的合成方法。提出了一种转化机制。
• Electronic and steric effects on the intramolecular Schmidt reaction of alkyl azides with secondary benzyl alcohols
  作者：Xiaowei Sun、Chengzhe Gao、Fan Zhang、Zhuang Song、Lingyi Kong、Xiaoan Wen、Hongbin Sun

  DOI：10.1016/j.tet.2013.11.098

  日期：2014.1

  The intramolecular Schmidt reaction of simple azido secondary benzyl alcohols has been realized for the first time. Investigation of the electronic and steric effects of the substrates on the product outcome was conducted. Unique intramolecular Schmidt rearrangements were observed with the formation of a cinnamaldehyde derivative and aryl aldehydes, respectively. Using this protocol, an efficient synthesis

  简单的叠氮基仲苄醇的分子内Schmidt反应已首次实现。研究了底物对产品结果的电子和空间效应。观察到独特的分子内施密特重排，分别形成肉桂醛衍生物和芳基醛。使用该协议，实现了二氢苯并三嗪衍生物的有效合成。此外，还获得了一种用于2-芳基-1-吡咯啉的实用方法。
• Highly Effective Asymmetric Hydrogenation of Cyclic <i>N</i>-Alkyl Imines with Chiral Cationic Ru-MsDPEN Catalysts
  作者：Fei Chen、Ziyuan Ding、Jie Qin、Tianli Wang、Yanmei He、Qing-Hua Fan

  DOI：10.1021/ol201679f

  日期：2011.8.19

  A range of cyclic N-alkyl imines were efficiently hydrogenated by using a chiral cationic Ru(η6-cymene)(MsDPEN)(BArF) complex (MsDPEN = N-(methanesulfonyl)-1,2-diphenylethylenediamine) in high yields and up to 98% ee. A one-pot synthesis of chiral 2-phenylpyrrolidine via reductive amination was also developed.

  环状的范围ñ -烷基亚胺是通过有效地使用手性阳离子钌氢化（η 6 -cymene）（MsDPEN）（BARF）配合物（MsDPEN = ñ - （甲磺酰基）-1,2-二苯基乙二胺）以高产率和高达到98％ee。还开发了通过还原胺化一锅法合成手性2-苯基吡咯烷。
• Electron-transfer-induced photochemical reactions of (silylallyl)iminium and benzylpyrrolinium salts by dual diradical and diradical cation cyclization pathways
  作者：In Seop Cho、Chung Lan Tu、Patrick S. Mariano

  DOI：10.1021/ja00165a052

  日期：1990.4

  The electron-transfer-induced photocyclization reactions of a series of N- and C-silylmethallyl-substituted iminium and 1-benzyl-1-pyrrolinium salts have been investigated in order to gain information about their mechanistic course and to probe their synthetic potential. The results obtained from these studies demonstrate that diradical cation intermediates formed in these processes can be transformed

  已经研究了一系列 N-和 C-甲硅烷基甲代烯丙基取代的亚胺盐和 1-苄基-1-吡咯啉盐的电子转移诱导的光环化反应，以获得有关其机理过程的信息并探讨其合成潜力。从这些研究中获得的结果表明，在这些过程中形成的双自由基阳离子中间体可以通过两种相互竞争的机制途径转化为产物，包括自由基偶联或烯丙基或苄基电离基团的丢失