4-[methyl-(toluene-4-sulfonyl)-amino]-benzoic acid methyl ester

• 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-[methyl-(toluene-4-sulfonyl)-amino]-benzoic acid methyl ester
• 英文别名: N-(4-carbomethoxyphenyl)-N-methyl-p-toluenesulfonamide；Tos(Me)-PABA-OMe；methyl 4-[methyl-(4-methylphenyl)sulfonylamino]benzoate
• 化学式: C₁₆H₁₇NO₄S
• 分子量: 319.381
• InChiKey: AZTPEGWYCCQLBW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  22
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  72.1
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  4-氨基苯甲酸甲酯盐酸盐 在 三乙胺 、 三苯基膦 、 偶氮二甲酸二乙酯 作用下， 以 四氢呋喃 、 氯仿 为溶剂， 生成 4-[methyl-(toluene-4-sulfonyl)-amino]-benzoic acid methyl ester
  参考文献：
  名称：

  Papaioannou, Dionissios; Athanassopoulos, Constantinos; Magafa, Vassiliki, Acta Chemica Scandinavica, 1994, vol. 48, # 4, p. 324 - 333

  摘要：

  DOI：

文献信息

• Pd-Catalyzed Intermolecular Amidation of Aryl Halides:  The Discovery that Xantphos Can Be Trans-Chelating in a Palladium Complex
  作者：Jingjun Yin、Stephen L. Buchwald

  DOI：10.1021/ja012610k

  日期：2002.5.1

  A general method for the intermolecular coupling of aryl halides and amides using a Xantphos/Pd catalyst is described. This system displays good functional group compatibility, and the desired C-N bond forming process proceeds in good to excellent yields with 1-4 mol % of the Pd catalyst. Additionally, the arylation of sulfonamides, oxazolidinones, and ureas is reported. The efficiency of these transformations

  描述了使用 Xantphos/Pd 催化剂进行芳基卤化物和酰胺分子间偶联的一般方法。该系统显示出良好的官能团兼容性，并且所需的 CN 键形成过程在 1-4 mol% 的 Pd 催化剂下以良好的产率进行。此外，还报道了磺胺、恶唑烷酮和脲的芳基化。发现这些转化的效率高度依赖于反应浓度和催化剂负载。由 4-溴苯甲腈 (Xantphos)Pd(4-氰基苯基)(Br) (II) 氧化加成产生的 Pd 配合物是一步从 Xantphos、Pd(2)(dba)(3) 和芳基溴化物。复合物 II 被证明是 4-溴苄腈和苯甲酰胺偶联的活性催化剂。
• Palladium-Catalyzed Intermolecular Coupling of Aryl Halides and Amides
  作者：Jingjun Yin、Stephen L. Buchwald

  DOI：10.1021/ol005654r

  日期：2000.4.1

  [formula: see text] The first general intermolecular C-N bond-forming reactions between aryl halides and amides were realized using a palladium catalyst with Xantphos as the ligand. Aryl triflates, carbamates, and sulfonamides are also viable substrates for the amidations, which proceed at 45-110 degrees C with 1-4 mol% of Pd catalyst in 66-99% yields and exhibit good functional group compatibility

  芳卤化物和酰胺之间的第一个一般的分子间CN键形成反应是使用以黄磷为配体的钯催化剂实现的。芳基三氟甲磺酸酯，氨基甲酸酯和磺酰胺也是酰胺化的可行底物，它们在45-110℃下以1-4 mol％的Pd催化剂进行，收率为66-99％，并具有良好的官能团相容性。
• Synthesis of new sulfonamides as lipoxygenase inhibitors
  作者：Ghulam Mustafa、Islam Ullah Khan、Muhammad Ashraf、Iftikhar Afzal、Sohail Anjum Shahzad、Muhammad Shafiq

  DOI：10.1016/j.bmc.2012.02.055

  日期：2012.4

  The present study describes a convenient method for the synthesis of new lipoxygenase inhibitors, 4-(toluene- 4-sulfonylamino)-benzoic acids from p-amino benzoic acid. Reaction of p-amino benzoic acid with p-toluenesulfonyl chloride provided thirteen N- and O-alkylation products 4a-4m in moderate to good yields. Lipoxygenase inhibition of newly formed sulfonamide derivatives was investigated and some of these compounds 4m, 4g, 4e, 4f and 4j showed good lipoxygenase inhibitory activities with IC50 values ranged between 15.8 +/- 0.57 and 91.7 +/- 0.61 mu mol whilst all other compounds exhibited mild anti-lipoxygenase activities with IC50 values ranged between 139.2 +/- 0.75 and 232.1 +/- 0.78 mu mol. N-alkylated products were more active against the enzyme than O-alkylated or both N- and O-alkylated ones. All synthesized sulfonamides were recrystallized in chloroform to give these title compounds which were characterized using FTIR, H-1 NMR, C-13 NMR, elemental analysis and single crystal X-ray diffraction techniques. (C) 2012 Elsevier Ltd. All rights reserved.
• Cross coupling of 3-bromopyridine and sulfonamides (R1NHSO2R2·R1=H, Me, alkyl; R2=alkyl and aryl) catalyzed by CuI/1,3-di(pyridin-2-yl)propane-1,3-dione
  作者：Xiaojun Han

  DOI：10.1016/j.tetlet.2009.11.037

  日期：2010.1

  N-(3-Pyridinyl)-substituted secondary and tertiary sulfonamides have been synthesized in good to excellent yields by the reaction of 3-bromopyridine with primary and secondary alkyl and aryl sulfonamides (MeSO2NH2, MeSO2NHMe, TolSO(2)NH(2), TolSO(2)NHMe, 1,3-propanesultam, and 1,4-butanesultam), catalyzed by CuI (20 mol %) and 1,3-di(pyridin-2-yl)propane-1,3-dione (20 mol %) with K2CO3 (200 mol %) in DMF (0.17 M for ArBr) at 110-120 degrees C over 36-40 h. 2-Bromopyridine, 4-bromopyridine, and a wide variety of substituted phenyl bromides can also be successfully coupled with sulfonamides under these reaction conditions. (C) 2009 Elsevier Ltd. All rights reserved.