N-[(3'-bromo-5'-(4''-methoxyphenyl))pyridin-2'-yl]pyridinium aminide | 1087036-68-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: N-[(3'-bromo-5'-(4''-methoxyphenyl))pyridin-2'-yl]pyridinium aminide
• 英文别名: [3-Bromo-5-(4-methoxyphenyl)pyridin-2-yl]-pyridin-1-ium-1-ylazanide
• CAS: 1087036-68-7
• 化学式: C₁₇H₁₄BrN₃O
• 分子量: 356.222
• InChiKey: PIMWCENQAXXILE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  27
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  N-[(3'-bromo-5'-(4''-methoxyphenyl))pyridin-2'-yl]pyridinium aminide 在 四丁基溴化铵 、 palladium diacetate 、 potassium carbonate 、 lithium chloride 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 0.17h， 以70%的产率得到3-(4''-methoxyphenyl)-dipyrido[1,2-b;3',2'-d]pyrazole
  参考文献：
  名称：

  A New Class of Pyrazolopyridine Nucleus with Fluorescent Properties, Obtained through Either a Radical or a Pd Arylation Pathway from N-Azinylpyridinium N-Aminides

  摘要：

  The synthesis of dipyridopyrazole and pyridopyrazolopyrazine derivatives--both of which incorporate a 3-aryl moiety--can be achieved in moderate yields by intramolecular radical arylation of pyridinium N-aminides using tris(trimethylsilyl)silane and azobisisobutyronitrile. Improved results were obtained on using Pd direct arylation in conjunction with microwave irradiation. A preliminary study into the fluorescent properties of the target compounds is also reported.

  DOI：

  10.1021/jo801549u
• 作为产物：
  描述：

  N-[5-(4-methoxylphenyl)pyridin-2-yl]pyridinium aminide 在 N-溴代丁二酰亚胺(NBS) 作用下， 以 二氯甲烷 为溶剂， 反应 0.17h， 以87%的产率得到N-[(3'-bromo-5'-(4''-methoxyphenyl))pyridin-2'-yl]pyridinium aminide
  参考文献：
  名称：

  A New Class of Pyrazolopyridine Nucleus with Fluorescent Properties, Obtained through Either a Radical or a Pd Arylation Pathway from N-Azinylpyridinium N-Aminides

  摘要：

  The synthesis of dipyridopyrazole and pyridopyrazolopyrazine derivatives--both of which incorporate a 3-aryl moiety--can be achieved in moderate yields by intramolecular radical arylation of pyridinium N-aminides using tris(trimethylsilyl)silane and azobisisobutyronitrile. Improved results were obtained on using Pd direct arylation in conjunction with microwave irradiation. A preliminary study into the fluorescent properties of the target compounds is also reported.

  DOI：

  10.1021/jo801549u

文献信息

• Pd-catalyzed reactions on pyridinium N-heteroarylaminides. Step-by-step synthesis of 3,5-unsymmetrically disubstituted 2-aminopyridines
  作者：Marta Córdoba、Rafael R. Castillo、M. Luisa Izquierdo、Julio Alvarez-Builla

  DOI：10.1016/j.tet.2010.02.036

  日期：2010.4

  Suzuki-Miyaura cross-coupling processes on N-pyridinium bromoazinyl aminides allow access to 3,5-disubstituted N-alkyl-2-aminopyridines The synthetic pathway involves a regioselective brommation of pyridinum N-(pyridin-2-yl)aminide and a subsequent reaction with boronic acids to afford monosubstituted aminides in good yields An additional brommation in the 5-position of the pyridine ring followed by a coupling reaction gives pyridinium N-(3,5-diarylpyridin-2-yl)aminides Finally, a regioselective alkylation on the exo-nitrogen and reduction of the N-N bond yields highly substituted 2-aminopyridines (C) 2010 Elsevier Ltd All rights reserved