(E)-N-(4-methoxybenzylidene)-4-methylbenzenesulfonamide | 14674-38-5

• 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: (E)-N-(4-methoxybenzylidene)-4-methylbenzenesulfonamide
• 英文别名: N-(4-methoxybenzylidene)-4-methylbenzenesulfonamide；N-(4-methoxyphenyl)methylidene-4-methylbenzenesulfonamide；(NE)-N-[(4-methoxyphenyl)methylidene]-4-methylbenzenesulfonamide
• CAS: 14674-38-5
• 化学式: C₁₅H₁₅NO₃S
• 分子量: 289.355
• InChiKey: NMFPHUIOZBSQGW-LFIBNONCSA-N

物化性质

• 熔点：
  127-132°C
• 溶解度：
  41 [ug/mL]

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  64.1
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (E)-N-(4-methoxybenzylidene)-4-methylbenzenesulfonamide 在 四丁基氟化铵 、 Dimethylzinc 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 24.5h， 生成 N-[1-(4-methoxyphenyl)-prop-2-ynyl]-4-methyl-benzenesulfonamide
  参考文献：
  名称：

  Redox-Neutral Synthesis of β-Amino Aldehydes from Imines by an Alkynylation/Hydration Sequence

  摘要：

  N-Protected beta-amino aldehydes have been prepared starting from imines through a sequence involving a Zn-mediated direct alkynylation followed by a Ru-catalyzed anti-Markovnikov alkyne hydration. The rate and the efficiency of the latter reaction are enhanced by the use of microwave irradiation. The possibility to carry out a one-pot Ru-catalyzed hydration/oxidation process from a terminal alkyne to a carboxylic acid was demonstrated, which provided direct access to a N-protected beta-amino acid from the corresponding terminal alkyne.

  DOI：

  10.1021/jo070745o
• 作为产物：
  描述：

  N-[(4-methoxyphenyl)-(4-methylphenyl)sulfonylmethyl]-4-methylbenzenesulfonamide 在 碳酸氢钠 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以100%的产率得到(E)-N-(4-methoxybenzylidene)-4-methylbenzenesulfonamide
  参考文献：
  名称：

  Practical and General Entry toN‐Tosyl Aryl Aldimines Promoted by Sulfamic Acid in Water and Alcohol

  摘要：

  A practical, indirect procedure composed of a three-component condensation using aromatic aldehydes, p-tosylamide, and sodium p-toluenesulfinate in the presence of sulfamic acid in tap water-alcohol solvents to afford amidosulfones, and the subsequent water two-phase basic elimination of the amidosulfones to N-tosyl arylimines, was developed. The process has little environmental impact, easy workup, mild reaction conditions, and good yields and is amenable to large-scale preparations.

  DOI：

  10.1080/00397910601131387

文献信息

• Catalytic cyanomethylation of carbonyl compounds and imines with highly basic phosphine
  作者：Satoru Matsukawa、Eri Kitazaki

  DOI：10.1016/j.tetlet.2008.02.155

  日期：2008.4

  A highly basic phosphine, tris(2,4,6-trimethoxy phenyl)phosphine (TTMPP), catalyzes cyanomethylation using trimethylsilylacetonitrile (TMSCH2CN) to give the corresponding products in good to high yields, with both carbonyl compounds and imines.

  高碱性膦三（2,4,6-三甲氧基苯基）膦（TTMPP）使用三甲基甲硅烷基乙腈（TMSCH 2 CN）催化氰基甲基化，从而以羰基化合物和亚胺的高收率得到相应的产物。
• 1,2-Aryl and 1,2-Hydride Migration in Transition Metal Complex Catalyzed Diazo Decomposition:  A Novel Approach to α-Aryl-β-enamino Esters
  作者：Nan Jiang、Zhaohui Qu、Jianbo Wang

  DOI：10.1021/ol016324p

  日期：2001.9.1

  esters in good yields and high stereoselectivity. The effect of the catalysts on the migratory aptitude of 1,2-aryl over 1,2-hydride migration was studied. A reaction mechanism involving a "bridged" phenonium ion is proposed. Reaction: see text.

  通过将α-重氮乙酸乙酯阴离子加入到N-磺酰亚胺中来制备N-甲苯磺酰基重氮氯胺。重氮与Rh（2）（OAc）（4）配合重氮酮胺的重氮分解导致芳基迁移，以高收率和高立体选择性产生α-芳基-β-烯氨基酯。研究了催化剂对1,2-氢化物迁移对1,2-芳基迁移能力的影响。提出了一种涉及“桥接”离子的反应机理。反应：见文字。
• Investigation of the Transition-Metal- and Acid-Catalyzed Reactions of β-(<i>N</i>-Tosyl)amino Diazo Carbonyl Compounds
  作者：Nan Jiang、Zhihua Ma、Zhaohui Qu、Xiaoyu Xing、Linfeng Xie、Jianbo Wang

  DOI：10.1021/jo0259818

  日期：2003.2.1

  beta-(N-tosyl)amino diazo carbonyl compounds have been prepared by nucleophilic condensation of N-tosylimines with acyldiazomethanes. The diazo decomposition of these diazo carbonyl compounds under various catalytic conditions, including Rh(II) carboxylates, Cu(I) and Cu(II) complexes, PhCO(2)Ag/Et(3)N, TsOH, and SnCl(2).2H(2)O, has been investigated. It was found that, in most cases, the diazo decomposition gave

  通过N-甲苯磺胺类与酰基重氮甲烷的亲核缩合制备了一系列β-（N-甲苯磺酰基）氨基重氮羰基化合物。这些重氮羰基化合物在各种催化条件下的重氮分解，包括羧酸Rh（II），Cu（I）和Cu（II）配合物，PhCO（2）Ag / Et（3）N，TsOH和SnCl（2） .2H（2）O，已被调查。发现在大多数情况下，重氮分解优先产生1,2-芳基迁移产物，但当PhCO（2）Ag / Et（3）N是催化体系时，1,2-氢化物迁移占主导。Hammett相关性已用于分析1，2-芳基迁移的电子效应。讨论了控制迁移偏好和反应机理的因素。
• Catalytic selective bis-arylation of imines with anisole, phenol, thioanisole and analogues
  作者：Cong-Rong Liu、Man-Bo Li、Cui-Feng Yang、Shi-Kai Tian

  DOI：10.1039/b800066b

  日期：——

  The first highly efficient double Friedel–Crafts reaction of N-tosyl imines with anisole, phenol, thioanisole and analogues has been developed to produce the corresponding symmetric diarylmethanes and triarylmethanes with high regioselectivity in the presence of a catalytic amount of Bi2(SO4)3–TMSCl at room temperature.

  首次开发了一种高效的N-甲苯磺酰亚胺与茴香醚、苯酚、硫代茴香醚及其类似物的双弗里德尔-克拉夫茨反应，在室温下，使用催化量的Bi2(SO4)3-TMSCl，以高区域选择性制备相应的对称二芳基甲烷和三芳基甲烷。
• Palladium-Catalyzed Addition of Arylboronic Acids to <i>N</i>-Tosylarylimines
  作者：Huayue Wu、Jiang Cheng、Qiang Zhang、Jiuxi Chen、Miaochang Liu、Changming Qin、Weike Su、Jinchang Ding

  DOI：10.1055/s-2008-1042932

  日期：2008.4

  Pd-catalyzed addition of arylboronic acids to N-tosyl­arylimines was described by employing easily prepared, air-stable aminophosphine ligands, cheap inorganic base, and common organic solvents, providing diarylmethylamine derivatives through one-pot synthesis in moderate to good yields. The efficiency of this reaction was demonstrated by the compatibility with nitro, trifluoro­methyl, fluoro, chloro, and methoxy groups. Moreover, rigorous exclusion of air/moisture is not required in these transformations.

  通过使用易于制备、空气稳定且价格低廉的氨基膦配体、廉价的碱和常见的溶剂，钯催化的芳基硼酸与N-甲磺酰芳基亚胺的加成反应，可在温和至良好产率下通过一锅法合成二芳基甲基胺衍生物。该反应的高效性体现在其对硝基、三氟甲基、氟、氯和甲氧基等官能团的兼容性。此外，这些转化过程并不严格要求无空气/水分的环境。