3,3-dimethyl-4-methylene-1-toluene-4-sulfonylpyrrolidin-2-one

• 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: 3,3-dimethyl-4-methylene-1-toluene-4-sulfonylpyrrolidin-2-one
• 英文别名: 3,3-Dimethyl-4-methylene-1-(4-tolylsulfonyl)pyrrolidin-2-one；3,3-dimethyl-4-methylene-1-tosylpyrrolidin-2-one；3,3-Dimethyl-4-methylidene-1-(4-methylphenyl)sulfonylpyrrolidin-2-one
• 化学式: C₁₄H₁₇NO₃S
• 分子量: 279.36
• InChiKey: AKQHBULEGKAISH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  62.8
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  N-(2-bromo-2-methylpropionyl)-N-propargyltoluene-p-sulfonamide 在 高氯酸铵 、 2,12-dimethyl-3,7,11,17-tetraazabicyclo<11.3.1>heptadeca-1(17),2,11,13,15-pentaenenickel(II) perchlorate 、 高氯酸四乙基铵 、 二苯基膦 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以16%的产率得到N-isobutyryl-N-propargyltoluene-p-sulfonamide
  参考文献：
  名称：

  Indirect Electroreductive Cyclization of N-Allyl and N-Propargylamides Using a Nickel(II) Complex as an Electron-Transfer Catalyst: Selective Formation of Halogenated and Non-halogenated Pyrrolidinones.

  摘要：

  镍(II)复合物催化的间接电还原反应在二甲基甲酰胺中进行，使用2个等量的氢原子供体二苯基膦，N-烯丙基和N-丙炔基α-溴酰胺得到了相应的吡咯烷酮，作为唯一的环化产物，产率良好；而在乙腈中，N-烯丙基α-碘酰胺的反应则得到了碘化吡咯烷酮。在这两种条件下，转型C-3 : C-4的吡咯烷酮主要生成。

  DOI：

  10.1248/cpb.43.32

文献信息

• Atom transfer radical cyclisations of activated and unactivated N-allylhaloacetamides and N-homoallylhaloacetamides using chiral and non-chiral copper complexes
  作者：Andrew J. Clark、Floryan De Campo、Robert J. Deeth、Robert P. Filik、Sylvain Gatard、Nicola A. Hunt、Dominique Lastécouères、Gerard H. Thomas、Jean-Baptiste Verlhac、Hathaichanuk Wongtap

  DOI：10.1039/a909666c

  日期：——

  Activated N-tosyl-2,2,2-trichloroacetamide 6a, N-benzyl-2,2,2-trichloroacetamide 6d, 2,2-dichloroacetamides 6b–c and 6e–f and 2-monohaloacetamides 11a–g undergo efficient 5-exo atom transfer radical cyclisations at room temperature mediated by CuCl or CuBr in the presence of tris(N,N-dimethylaminoethylene)amine 3 (trien-Me6). The efficiency and stereoselectivity of these cyclisations was found to be greater than existing published atom transfer procedures based upon CuCl(bipyridine), RuCl2(PPh3)3 and CuCl(TMEDA)2. The product distribution for the cyclisation onto alkyne 11g was found to be solvent dependent. Attempts to make larger ring sizes by endo cyclisation of N-tosylacetamides 19a–c led to a competing 5-exoipso aromatic substitution into the N-tosyl group followed by re-aromatisation and loss of SO2 to furnish an amidyl radical. Cyclisation of N-homoallylacetamides 25a–d proceeded smoothly to give δ-lactams with a range of catalysts based upon ligands 2 and 26. The stereoselectivity of cyclisation to give γ lactams could be somewhat influenced by using chiral enantiopure copper complexes 28–30 suggesting that the reactions may involve metal-complexed radicals.

  活化的N-托烯基-2,2,2-三氯乙酰酰胺6a、N-苄基-2,2,2-三氯乙酰酰胺6d、2,2-二氯乙酰酰胺6b–c和6e–f以及2-单卤乙酰酰胺11a–g在室温下通过CuCl或CuBr以及三（N,N-二甲氨基乙烯）胺3（trien-Me6）的介导，经历了高效的5-exo原子转移自由基环化反应。这些环化反应的效率和立体选择性比现有的基于CuCl（联吡啶）、RuCl2（PPh3）3和CuCl（TMEDA）2的原子转移程序更高。环化反应在炔烃11g上的产物分布发现依赖于溶剂。尝试通过N-托烯基乙酰酰胺19a–c的内环化生成更大环的过程，导致N-托烯基基团发生竞争性的5-exo环置换，随后发生再芳香化并失去SO2，生成酰基自由基。N-同烯丙基乙酰酰胺25a–d的环化顺利进行，得到了一系列基于配体2和26的催化剂的δ-内酯。通过使用手性恩路全纯铜复合物28–30，γ-内酯的环化立体选择性受到一定影响，表明反应可能涉及金属配位自由基。
• Cu⁰-Promoted Cyclisation of Unsaturated α-Halogeno Amides To Give β- and γ-Lactams
  作者：Andrew J. Clark、Jonathan N. Duckmanton、Fulvia Felluga、Armando Gennaro、Franco Ghelfi、Jack R. D. Hardiman、Abdirisak A. Isse、Claudia Manferdini、Domenico Spinelli

  DOI：10.1002/ejoc.201600249

  日期：2016.5

  Efficient 5-exo-trig atom-transfer radical cyclisation of 13 unsaturated α-halogeno amides mediated by Cu0 (copper wire) with tripyridylmethanimine ligand (TPMA; 1 mol-%) in a mixed solvent of EtOAc/EtOH (3:1) is reported (89–98 %), with recycling of the copper wire. A substantial improvement in conversion and selectivity was obtained when Na2CO3 (5 mol-%) was added to the reaction mixture. The Cu0

  在 EtOAc/EtOH (3:1) 的混合溶剂中，由 CuO（铜线）与三吡啶基甲亚胺配体（TPMA；1 mol-%）介导的 13 种不饱和 α-卤代酰胺的有效 5-exo-trig 原子转移自由基环化是报告 (89–98%)，回收铜线。当将 Na2CO3 (5 mol-%) 添加到反应混合物中时，转化率和选择性得到显着改善。CuO 在 SARA-ATRC 工艺中充当辅助活化剂和还原剂。该方案扩展到炔烃的环化和β-内酰胺的形成，尽管这些反应的产率较低（35-76%）。
• Ozaki, Shigeko; Matsushita, Hidenori; Ohmori, Hidenobu, Journal of the Chemical Society. Perkin transactions I, 1993, # 19, p. 2339 - 2344
  作者：Ozaki, Shigeko、Matsushita, Hidenori、Ohmori, Hidenobu

  DOI：——

  日期：——
• Solid-Supported Copper Catalysts for Atom-Transfer Radical Cyclizations:  Assessment of Support Type and Ligand Structure on Catalyst Performance in the Synthesis of Nitrogen Heterocycles
  作者：Andrew J. Clark、Joanna V. Geden、Stephen Thom

  DOI：10.1021/jo0521605

  日期：2006.2.1

  A range of solid supported pyridinemethanimine 9-11 and polyamine 12-15 ligands have been prepared on silica, polystyrene, and JandaJel supports. The CuCl and CuBr complexes of these supported ligands have been used to assess both the effect of the ligand type and the nature of the support upon a representative range of copper-mediated atom transfer 5-exo-trig 6, 24-25, 5-exo-dig 26, 4-exo-trig 28, and 5-endo-trig 27, 38 radical cyclizations to give nitrogen heterocycles. In addition, the effect of the nature of the support on the stereochemical outcome of the 5-exo cyclization of 25 has been probed. Generally, it was found that the type of support (e.g., polystyrene, silica, or JandaJel) had very little effect upon the efficiency and selectivity of the processes but that the nature of the ligand type immobilized was the important factor. Thus, the 5-exo cyclization of 6 and 24-26 proceeded more rapidly with the PMI ligands 9-11, whereas 4-exo cyclizations 28 and 5-endo, radical polar crossover reactions 27 and 38 proceeded more efficiently with the JJ-TEDETA ligand 15. The efficiency of the supported ligands was also compared to their solution counterparts 4 and 5. The reusability of P-PMDETA ligand system 13 was assessed in the cyclization of 6.
• Copper mediated atom transfer radical cyclisations with AIBN
  作者：Andrew J. Clark、Paul Wilson

  DOI：10.1016/j.tetlet.2008.06.016

  日期：2008.8

  We have shown that it is possible to mediate a range of 5-exo trig and 5-exo dig atom transfer radical cyclisations of bromoacetamides using 0.1-1 mol % CuBr or CuBT2 in conjunction with 0.1-1 mol % tri(pyridin-2-ylmethyl)amine and 10 mol % AIBN. This equates to a 30-300-fold reduction in the amount of catalyst previously reported for these reactions and allows cyclisation to be carried out with the more oxidatively stable CuBr2 without the requirement of an inert atmosphere. (C) 2008 Elsevier Ltd. All rights reserved.