1-methyl-5-(2,4,6-trimethoxyphenyl)pyrrolidin-2-one | 70687-39-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯烷类
• 英文名称: 1-methyl-5-(2,4,6-trimethoxyphenyl)pyrrolidin-2-one
• CAS: 70687-39-7
• 化学式: C₁₄H₁₉NO₄
• 分子量: 265.309
• InChiKey: UBGCWEXTZAXJIN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  48
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  N-甲基吡咯烷酮 在 盐酸 、 叔丁基过氧化氢 、 四丁基碘化铵 作用下， 以 甲醇 、 癸烷 、 水 为溶剂， 生成 1-methyl-5-(2,4,6-trimethoxyphenyl)pyrrolidin-2-one
  参考文献：
  名称：

  HN-唑与α-C（sp 3）-H酰胺经C–H活化的无金属交叉脱氢偶联及其机理和应用研究

  摘要：

  在氧化反应条件下，已开发出各种N-唑环与各种含α-C（sp 3）-H的酰胺之间的无金属一步偶联反应。在纯净的反应条件下，在叔丁基过氧化氢（TBHP）存在下，市售的碘化四丁基碘化铵（TBAI）有效地催化了偶联反应。各种唑类型，例如1 H-苯并三唑，1 H -1,2,3-三唑，1 H -1,2,4-三唑，1 H-四唑，1 H-吡唑和1 H-苯并咪唑，和含α-C（sp 3）-H的酰胺，例如N，N-二甲基乙酰胺，N，Ñ二甲基苯甲酰胺，Ñ甲基乙酰胺，Ñ，Ñ -diethylacetamide，Ñ -甲基吡咯烷和吡咯烷-2-酮，被成功地用于偶联。为了研究不同中间体的参与，还进行了一系列设计和控制的实验。根据证据，还提出了一个合理的机制。这些新颖，简单，快速，有吸引力和直接的转变为构造新型高度功能化的N开辟了道路。-唑类通过直接的共价N–H键转换为N–C键而形成。该方法允许使用经典的合成方法合成需要多个步骤的复杂分子。此外，含α-C（sp

  DOI：

  10.1021/acs.joc.6b02448

文献信息

• K₂S₂O₈-catalyzed highly regioselective amidoalkylation of diverse N-heteroaromatics in water under visible light irradiation
  作者：Jiadi Zhou、Quanlei Ren、Ning Xu、Chaodong Wang、Shengjie Song、Zhi Chen、Jianjun Li

  DOI：10.1039/d1gc02107a

  日期：——

  N-heteroaromatics and γ-lactams/amides was developed. Quinoxalin-2(1H)-one, quinoline, isoquinoline, phthalazine, and benzothiazole reacted with γ-lactams/amides to give the corresponding C(sp2)–H amidoalkylation products in moderate to good yields with high regioselectivity. This visible-light-induced photocatalyst-free reaction was conducted in H2O at ambient temperature, which comply with the principles

  开发了 AK 2 S 2 O 8催化的多功能 C(sp 2 )–C(sp 3 ) 键与 N-杂芳烃和 γ-内酰胺/酰胺的形成。Quinoxalin-2(1 H )-one、喹啉、异喹啉、酞嗪和苯并噻唑与 γ-内酰胺/酰胺反应，以中等至良好的收率和高区域选择性得到相应的 C(sp 2 )-H 酰胺烷基化产物。这种可见光诱导的无光催化剂反应是在环境温度下在 H 2 O 中进行的，符合“绿色化学”的原则。新的 K 2 S 2 O 8 通过对照实验研究了催化机理。
• Photocatalyst-Free, Visible-Light-Mediated C(sp³)–H Arylation of Amides via a Solvent-Caged EDA Complex
  作者：Jaspreet Kaur、Ahmed Shahin、Joshua P. Barham

  DOI：10.1021/acs.orglett.1c00132

  日期：2021.3.19

  A photocatalyst-free and mild visible light photochemical procedure for C(sp3)–H arylation of amides is described. The reaction proceeds via an electron donor–acceptor (EDA) complex between an electron-rich arene substrate and electron-poor persulfate oxidant. C(sp3)–H arylation of the amide occurs selectively with the most electron-rich arene of the substrate. Mechanistic studies corroborate the reaction

  描述了酰胺的C（sp 3）–H芳基化反应的无光催化剂和温和可见光光化学程序。反应通过富电子芳烃底物与贫电子过硫酸盐氧化剂之间的电子给体-受体（EDA）配合物进行。酰胺的C（sp 3）–H芳基化选择性地发生在底物最富电子的芳烃上。机理研究证实了该反应是在溶剂笼中进行的，溶剂笼中的组分紧密相邻。
• Friedel–Crafts Amidoalkylation via Thermolysis and Oxidative Photocatalysis
  作者：Chunhui Dai、Francesco Meschini、Jagan M. R. Narayanam、Corey R. J. Stephenson

  DOI：10.1021/jo300162c

  日期：2012.5.4

  Friedel Crafts amidoalkylation was achieved by oxidation of dialkylamides using persulfate (S2O82-) in the presence of the visible light catalyst, Ru(bpy)(3)Cl-2, at room temperature, via a reactive N-acyliminium intermediate. Alternatively, mild heating of the dialkylamides and persulfate afforded a metal and Lewis acid-free Friedel-Crafts amidoalkylation. Alcohols and electron-rich arenes served as effective nucleophiles, forming new C-O or C-C bonds. In general, photocatalysis provided higher yields and better selectivities.
• Iron-Catalyzed Oxidative Coupling of Alkylamides with Arenes through Oxidation of Alkylamides Followed by Friedel−Crafts Alkylation
  作者：Eiji Shirakawa、Nanase Uchiyama、Tamio Hayashi

  DOI：10.1021/jo102217m

  日期：2011.1.7

  FeCL(3) in combination with t-BuOOt-Bu as an oxidant was found to be an efficient catalyst for oxidation of alkylamides to alpha-(tert-butoxy)alkylamides. FeCl(2) and CuCl showed, respectively, almost the same and slightly lower activities compared with FeCl(3) in the tert-butoxylation of N-phenylpyrrolidone (1a), whereas no tert-butoxylated product was obtained by use of Fe(OTf)(3), RuCl(3), or Zr(OTf)(4). FeCl(3) was found to be effective also as a catalyst for the Friedel-Crafts alkylation with thus obtained alpha-(tert-butoxy)alkylamides. The Friedel-Crafts alkylation proceeded smoothly also in the presence of a catalytic amount of Fe(OTf)(3), RuCl(3), or Zr(OTf)(4). In contrast, FeCl(2) and CuCl, which showed certain activity toward the tert-butoxylation, failed to promote the Friedel Crafts alkylation. Among the transition metal complexes thus far examined, only FeCl(3) showed high catalytic activities for both the oxidation and the Friedel-Crafts alkylation. The bifunctionality of FeCl(3) was utilized for the oxidative coupling of alkylamides with arenes through a tandem reaction consisting of oxidation of alkylamides to alpha-(tert-butoxy)alkylamides and the following Friedel-Crafts alkylation. The FeCl(3)-catalyzed oxidative coupling is applicable to a wide variety of alkylamides and arenes, though a combination of FeCl(3) with Fe(OTf)(3) was found to be effective for the reaction of arenes with low nucleophilicity. A Fe(II)-Fe(III) catalytic cycle is concerned with the tert-butoxylation, whereas a Fe(III) complex as a Lewis acid catalyzes the Friedel-Crafts alkylation.
• Metal-free Cross-Dehydrogenative Coupling of <i>HN</i>-azoles with α-C(sp³)-H Amides via C–H Activation and Its Mechanistic and Application Studies
  作者：Hariprasad Aruri、Umed Singh、Mukesh Kumar、Sumit Sharma、Sravan Kumar Aithagani、Vivek K. Gupta、Serge Mignani、Ram A. Vishwakarma、Parvinder Pal Singh

  DOI：10.1021/acs.joc.6b02448

  日期：2017.1.20

  A metal-free one step coupling reaction between various N-azole rings and diverse α-C(sp3)-H containing amides has been developed under oxidative reaction conditions. Commercially available tetrabutyl ammonium iodide (TBAI) in the presence of terbutylhydroperoxide (TBHP), under neat reaction condition, efficiently catalyzed the coupling. Various azole types, such as 1H-benzotriazoles, 1H-1,2,3-triazoles

  在氧化反应条件下，已开发出各种N-唑环与各种含α-C（sp 3）-H的酰胺之间的无金属一步偶联反应。在纯净的反应条件下，在叔丁基过氧化氢（TBHP）存在下，市售的碘化四丁基碘化铵（TBAI）有效地催化了偶联反应。各种唑类型，例如1 H-苯并三唑，1 H -1,2,3-三唑，1 H -1,2,4-三唑，1 H-四唑，1 H-吡唑和1 H-苯并咪唑，和含α-C（sp 3）-H的酰胺，例如N，N-二甲基乙酰胺，N，Ñ二甲基苯甲酰胺，Ñ甲基乙酰胺，Ñ，Ñ -diethylacetamide，Ñ -甲基吡咯烷和吡咯烷-2-酮，被成功地用于偶联。为了研究不同中间体的参与，还进行了一系列设计和控制的实验。根据证据，还提出了一个合理的机制。这些新颖，简单，快速，有吸引力和直接的转变为构造新型高度功能化的N开辟了道路。-唑类通过直接的共价N–H键转换为N–C键而形成。该方法允许使用经典的合成方法合成需要多个步骤的复杂分子。此外，含α-C（sp