N-(α,α-dimethylbenzyl)-p-toluenesulfonamide | 66898-03-1

• 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: N-(α,α-dimethylbenzyl)-p-toluenesulfonamide
• 英文别名: 4-methyl-N-(1-methyl-1-phenyl-ethyl)-benzenesulfonamide；4-methyl-N-(1-methyl-1-phenylethyl)benzenesulfonamide；4-methyl-N-(2-phenylpropan-2-yl)benzenesulfonamide；N-(2-phenylprop-2-yl)-4-toluenesulfonamide；2-cumyl benzenesulfonamide；Benzenesulfonamide, 4-methyl-N-(1-methyl-1-phenylethyl)-
• CAS: 66898-03-1
• 化学式: C₁₆H₁₉NO₂S
• 分子量: 289.398
• InChiKey: OSOWYDICZZHPKW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  54.6
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  N-(α,α-dimethylbenzyl)-p-toluenesulfonamide 在 正丁基锂 、 四甲基乙二胺 、 碘 作用下， 以 四氢呋喃 为溶剂， 反应 1.0h， 以84%的产率得到2-iodo-4-methyl-N-(2-phenylpropan-2-yl)benzenesulfonamide
  参考文献：
  名称：

  Directed Ortho Metalation−Cross Coupling Strategies. N-Cumyl Arylsulfonamides. Facile Deprotection and Expedient Route to 7- and 4,7-Substituted Saccharins

  摘要：

  By using the powerful N-cumylsulfonamide directed metalation group (DMG), a series of 2-substituted derivatives were prepared according to the directed ortho metalation (DoM) tactic (Table 1). Mild conditions for N-decumylation and other simple transformations of the products have been achieved (Scheme 2). The 3-silyloxy sultam 12 undergoes further DoM to give formyl, thiomethyl, iodo, and amide derivatives 13a-g of potential value for saccharin synthesis (Table 2). An effective route to target 7-aryl saccharins via Suzuki cross coupling (Table 3) followed by further metalation-carbamoylation and cyclization (Table 5) is described. 4,7-Disubstituted saccharins have been obtained by similar sequences (Scheme 3). Mild TFA-mediated N-decumylation furnishes substituted primary arylsulfonamides (Table 4).

  DOI：

  10.1021/jo062385v
• 作为产物：
  描述：

  2-苯基-2-丙醇 在 Lindlar's catalyst sodium azide 、 氢气 、 三乙胺 、 三氟乙酸 作用下， 以 乙醇 、 二氯甲烷 、 氯仿 为溶剂， 反应 24.0h， 生成 N-(α,α-dimethylbenzyl)-p-toluenesulfonamide
  参考文献：
  名称：

  Directed Ortho Metalation−Cross Coupling Strategies. N-Cumyl Arylsulfonamides. Facile Deprotection and Expedient Route to 7- and 4,7-Substituted Saccharins

  摘要：

  By using the powerful N-cumylsulfonamide directed metalation group (DMG), a series of 2-substituted derivatives were prepared according to the directed ortho metalation (DoM) tactic (Table 1). Mild conditions for N-decumylation and other simple transformations of the products have been achieved (Scheme 2). The 3-silyloxy sultam 12 undergoes further DoM to give formyl, thiomethyl, iodo, and amide derivatives 13a-g of potential value for saccharin synthesis (Table 2). An effective route to target 7-aryl saccharins via Suzuki cross coupling (Table 3) followed by further metalation-carbamoylation and cyclization (Table 5) is described. 4,7-Disubstituted saccharins have been obtained by similar sequences (Scheme 3). Mild TFA-mediated N-decumylation furnishes substituted primary arylsulfonamides (Table 4).

  DOI：

  10.1021/jo062385v

文献信息

• Imido Transfer from Bis(imido)ruthenium(VI) Porphyrins to Hydrocarbons:  Effect of Imido Substituents, C−H Bond Dissociation Energies, and Ru^VI/V Reduction Potentials
  作者：Sarana Ka-Yan Leung、Wai-Man Tsui、Jie-Sheng Huang、Chi-Ming Che、Jiang-Lin Liang、Nianyong Zhu

  DOI：10.1021/ja0542789

  日期：2005.11.30

  (BDE) of the hydrocarbons. A linear correlation was observed between log k' (k' is the k2 value divided by the number of reactive hydrogens) and BDE and between log k2 and E(1/2)(Ru(VI/V)); the linearity in the former case supports a H-atom abstraction mechanism. The amidation by [Ru(VI)(TMP)(NNs)2] reverses the thermodynamic reactivity order cumene > ethylbenzene/toluene, with k'(tertiary C-H)/k'(secondary

  [Ru(VI)(TMP)(NSO2R)2]（SO2R = Ms、Ts、Bs、Cs、Ns；R = p-C6H4OMe、p-C6H4Me、C6H5、p-C6H4Cl、p-C6H4NO2）和[ Ru(VI)(Por)(NTs)2] (Por = 2,6-Cl2TPP, F20-TPP) 是通过 [Ru(II)(Por)(CO)] 与 PhI=NSO2R 在 CH2Cl2 中的反应制备的。这些配合物表现出可逆的 Ru(VI/V) 对，E(1/2) = -0.41 到 -0.12 V vs Cp2Fe(+/0)，并与苯乙烯、降冰片烯、顺式环辛烯、茚、乙苯进行酰亚胺转移反应，枯烯、9,10-二氢蒽、呫吨、环己烯、甲苯和四氢呋喃以高达 85% 的产率提供氮丙啶或酰胺。298 K 氮丙啶化/酰胺化反应的二级速率常数 (k2) 确定为 (2.6 +/- 0.1) x 10(-5) 至 14.4 +/- 0.6
• A Versatile Tripodal Cu(I) Reagent for C–N Bond Construction via Nitrene-Transfer Chemistry: Catalytic Perspectives and Mechanistic Insights on C–H Aminations/Amidinations and Olefin Aziridinations
  作者：Vivek Bagchi、Patrina Paraskevopoulou、Purak Das、Lingyu Chi、Qiuwen Wang、Amitava Choudhury、Jennifer S. Mathieson、Leroy Cronin、Daniel B. Pardue、Thomas R. Cundari、George Mitrikas、Yiannis Sanakis、Pericles Stavropoulos

  DOI：10.1021/ja503869j

  日期：2014.8.13

  intermediates play a major role and are generated by hydrogen-atom abstraction from substrate C-H bonds or initial nitrene-addition to one of the olefinic carbons. Subsequent processes include solvent-caged radical recombination to afford the major amination and aziridination products but also one-electron oxidation of diffusively free carboradicals to generate amidination products due to carbocation

  Cu(I) 催化剂 (1) 由强碱性胍基部分的框架支撑，介导氮烯从 PhI=NR 来源转移到各种脂肪烃（CH 胺化或在腈存在下酰胺化）和烯烃（氮丙啶化）。产品概况与逐步而非一致的 CN 键形成一致。借助哈米特图、动力学同位素效应、标记立体化学探针以及自由基陷阱和时钟进行的机理研究使我们能够得出结论，碳自由基中间体起主要作用并且是通过从底物 CH 键或初始氮烯加成中提取氢原子而产生的到烯烃碳之一。随后的过程包括溶剂笼式自由基重组以提供主要的胺化和氮丙啶化产物，以及由于碳正离子的参与，扩散游离碳自由基的单电子氧化以产生酰胺化产物。通过变温电喷雾质谱法、循环伏安法和电子顺磁共振波谱法对金属和配体中心事件的分析，再加上计算研究，表明一种活性但仍然难以捉摸的铜氮 (S = 1) 中间体最初抽象分别来自 CH 和 C=C 键的氢原子或将氮烯添加到 CH 和 C=C 键，然后进行自旋翻转和自由基回弹，以提供包含分子内和分子间
• N Alkylation of Tosylamides Using Esters as Primary and Tertiary Alkyl Sources: Mediated by Hydrosilanes Activated by a Ruthenium Catalyst
  作者：Takashi Nishikata、Hideo Nagashima

  DOI：10.1002/anie.201201426

  日期：2012.5.29

  Select your group: Either a primary or tertiary alkyl group can be selectively introduced onto the nitrogen atom of tosylamides in a ruthenium‐catalyzed reaction employing hydrosilanes through a judicious choice in the esters that serve as the alkyl source (see scheme; Ts= 4‐toluenesulfonyl). These N‐alkylation reactions are useful for construction of naturally occurring azacyclic skeletons.

  选择您的基团：在使用氢硅烷的钌催化反应中，可以明智地选择用作烷基源的酯，将伯烷基或叔烷基选择性引入甲苯磺酰胺的氮原子上（参见方案; Ts = 4-甲苯磺酰基）。这些N烷基化反应可用于构建天然存在的氮杂环骨架。
• A highly efficient catalyst-free protocol for C–H bond activation: sulfamidation of alkyl aromatics and aldehydes
  作者：Arun Jyoti Borah、Prodeep Phukan

  DOI：10.1039/c2cc31258a

  日期：——

  A catalyst-free protocol has been developed for amidation of alkyl aromatics and aldehydes using TsNBr(2)via a nitrene transfer process in the presence of a base in excellent yield within a short time. The reaction was found to be selective for secondary and tertiary benzylic C-H bonds and C-H bonds of aldehydic groups.

  已开发了一种无催化剂的方案，用于在短时间内通过TsNBr（2）在碱的存在下，在碱的存在下，通过T腈（Ns）转移过程，将烷基芳族化合物和醛酰胺化。发现该反应对仲和叔苄基CH键和醛基的CH键具有选择性。
• Sulfonylamidation of alkylbenzenes at benzylic position with p-toluenesulfonamide and 1,3-diiodo-5,5-dimethylhydantoin
  作者：Haruka Baba、Hideo Togo

  DOI：10.1016/j.tetlet.2010.02.060

  日期：2010.4

  Treatment of alkylbenzenes with p-toluenesulfonamide and 1,3-diiodo-5,5-dimethylhydantoin (DIH) in a small amount of carbon tetrachloride at 60 °C gave the corresponding α-p-toluenesulfonylamido)alkylbenzenes in good to moderate yields. The present reaction is a simple method for the α-sulfonylamidation of the benzylic position in alkylbenzenes.

  与烷基苯的治疗p在60四氯化碳少量-toluenesulfonamide和1,3-二碘-5,5-二甲基（DIH）℃，得到相应的α- p良好-toluenesulfonylamido）烷基苯至适中的产率。本反应是用于烷基苯中的苄基位置的α-磺酰胺化的简单方法。