N-benzyl-N-(1-(2-bromophenyl)-3-phenylprop-2-yn-1-yl)-acrylamide | 1428883-50-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 直链 1,3-二芳基丙烷
• 英文名称: N-benzyl-N-(1-(2-bromophenyl)-3-phenylprop-2-yn-1-yl)-acrylamide
• 英文别名: N-benzyl-N-[1-(2-bromophenyl)-3-phenylprop-2-ynyl]prop-2-enamide
• CAS: 1428883-50-4
• 化学式: C₂₅H₂₀BrNO
• 分子量: 430.344
• InChiKey: ORDSLLDWACEAHD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.1
• 重原子数：
  28
• 可旋转键数：
  6
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  20.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  N-benzyl-N-(1-(2-bromophenyl)-3-phenylprop-2-yn-1-yl)-acrylamide 在 RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 、 乙烯 作用下， 以 甲苯 为溶剂， 反应 20.0h， 以23%的产率得到1-benzyl-5-(2-bromophenyl)-4-(1-phenylvinyl)-1,5-dihydro-2H-pyrrol-2-one
  参考文献：
  名称：

  Divergent Reaction Pathways of Homologous and Isosteric Propargyl Amides in Sequential Ru/Pd-Catalyzed Annulations for the Synthesis of Heterocycles

  摘要：

  Cu-catalyzed three-component coupling of imines with benzoyl chloride and terminal arylalkynes followed by enyne ring-closing metathesis (RCM) and Heck cyclization afforded medicinally relevant benzoindolines, cyclopropane-fused indenopyridines, pyrroloquinolines, or 1,7-tetrahydrophenanthrolines via divergent cyclization pathways. Unexpectedly, the Pd-catalyzed cyclization of heterocyclic dienes proceeded via regiodivergent 5-exo or 6-endo pathways depending on the ring size (n = 1, 2) or the presence of isosteric groups (CH vs N). A one pot protocol for the enyne-RCM/Heck annulation featuring a sequential addition of the Ru and Pd catalysts was developed maximizing the synthetic efficiency.

  DOI：

  10.1021/jo400246d
• 作为产物：
  描述：

  N-(2-bromobenzylidene)-1-phenylmethanamine 、 苯乙炔 、 丙烯酰氯 在 N,N-二异丙基乙胺 、 copper(l) chloride 作用下， 以 乙腈 为溶剂， 反应 2.0h， 以58%的产率得到N-benzyl-N-(1-(2-bromophenyl)-3-phenylprop-2-yn-1-yl)-acrylamide
  参考文献：
  名称：

  Divergent Reaction Pathways of Homologous and Isosteric Propargyl Amides in Sequential Ru/Pd-Catalyzed Annulations for the Synthesis of Heterocycles

  摘要：

  Cu-catalyzed three-component coupling of imines with benzoyl chloride and terminal arylalkynes followed by enyne ring-closing metathesis (RCM) and Heck cyclization afforded medicinally relevant benzoindolines, cyclopropane-fused indenopyridines, pyrroloquinolines, or 1,7-tetrahydrophenanthrolines via divergent cyclization pathways. Unexpectedly, the Pd-catalyzed cyclization of heterocyclic dienes proceeded via regiodivergent 5-exo or 6-endo pathways depending on the ring size (n = 1, 2) or the presence of isosteric groups (CH vs N). A one pot protocol for the enyne-RCM/Heck annulation featuring a sequential addition of the Ru and Pd catalysts was developed maximizing the synthetic efficiency.

  DOI：

  10.1021/jo400246d

文献信息

• Divergent Reaction Pathways of Homologous and Isosteric Propargyl Amides in Sequential Ru/Pd-Catalyzed Annulations for the Synthesis of Heterocycles
  作者：Sandeep N. Raikar、Helena C. Malinakova

  DOI：10.1021/jo400246d

  日期：2013.4.19

  Cu-catalyzed three-component coupling of imines with benzoyl chloride and terminal arylalkynes followed by enyne ring-closing metathesis (RCM) and Heck cyclization afforded medicinally relevant benzoindolines, cyclopropane-fused indenopyridines, pyrroloquinolines, or 1,7-tetrahydrophenanthrolines via divergent cyclization pathways. Unexpectedly, the Pd-catalyzed cyclization of heterocyclic dienes proceeded via regiodivergent 5-exo or 6-endo pathways depending on the ring size (n = 1, 2) or the presence of isosteric groups (CH vs N). A one pot protocol for the enyne-RCM/Heck annulation featuring a sequential addition of the Ru and Pd catalysts was developed maximizing the synthetic efficiency.