4-methoxy-N-(2-phenylpropan-2-yl)benzenesulfonamide | 66898-04-2

• 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: 4-methoxy-N-(2-phenylpropan-2-yl)benzenesulfonamide
• CAS: 66898-04-2
• 化学式: C₁₆H₁₉NO₃S
• 分子量: 305.398
• InChiKey: KMUWIQKOXIMOLY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  21
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  63.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  4-methoxy-N-(2-phenylpropan-2-yl)benzenesulfonamide 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67%的产率得到2-iodo-4-methoxy-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 4-methoxy-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

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
• Decarboxylative cross-nucleophile coupling via ligand-to-metal charge transfer photoexcitation of Cu(ii) carboxylates
  作者：Qi Yukki Li、Samuel N. Gockel、Grace A. Lutovsky、Kimberly S. DeGlopper、Neil J. Baldwin、Mark W. Bundesmann、Joseph W. Tucker、Scott W. Bagley、Tehshik P. Yoon

  DOI：10.1038/s41557-021-00834-8

  日期：2022.1

  nucleophiles under visible-light irradiation. Preliminary mechanistic studies suggest that the relevant chromophore in this reaction is a Cu(ii) carboxylate species assembled in situ. We propose that visible-light excitation to a ligand-to-metal charge transfer (LMCT) state results in a radical decarboxylation process that initiates the oxidative cross-coupling. The reaction is applicable to a wide

  能够形成碳-氮、碳-氧和碳-碳键的反应是合成化学的核心。然而，通常需要底物预功能化来实现此类转化，而无需强制反应条件。因此，开发丰富的原料化学品的直接偶联方法对于快速构建复杂的分子支架是非常必要的。在这里，我们报道了在可见光照射下羧酸与多种亲核试剂的铜介导的净氧化脱羧偶联。初步机理研究表明，该反应中的相关生色团是原位组装的 Cu( ii ) 羧酸盐物种。我们提出，可见光激发配体到金属的电荷转移（LMCT）状态会导致自由基脱羧过程，从而引发氧化交叉偶联。该反应适用于多种偶联伙伴，包括复杂的药物分子，表明这种交叉亲核偶联策略将促进快速化合物库合成，以发现新的药物制剂。
• DE2744137
  申请人：——

  公开号：——

  公开（公告）日：——
• GB1574477
  申请人：——

  公开号：——

  公开（公告）日：——
• Directed <i>Ortho</i> Metalation−Cross Coupling Strategies. <i>N</i>-Cumyl Arylsulfonamides. Facile Deprotection and Expedient Route to 7- and 4,7-Substituted Saccharins
  作者：Jérôme Blanchet、Todd Macklin、Patrick Ang、Costa Metallinos、Victor Snieckus

  DOI：10.1021/jo062385v

  日期：2007.4.1

  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).