N-mesityl-3,4-(methylenedioxy)aniline | 137445-01-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并间二氧杂环戊烯类
• 英文名称: N-mesityl-3,4-(methylenedioxy)aniline
• 英文别名: N-mesityl-3,4-dimethylenedioxyaniline；N-(2,4,6-trimethylphenyl)-1,3-benzodioxol-5-amine
• CAS: 137445-01-3
• 化学式: C₁₆H₁₇NO₂
• 分子量: 255.316
• InChiKey: YTODHNVGJLTEGV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  30.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  4-溴-1,2-亚甲二氧基苯 、 2,4,6-三甲基苯胺 在 tris(dibenzylideneacetone)dipalladium (0) 2-(二叔丁基膦)联苯 、 sodium t-butanolate 作用下， 以 甲苯 为溶剂， 反应 2.0h， 以97%的产率得到N-mesityl-3,4-(methylenedioxy)aniline
  参考文献：
  名称：

  Simple, Efficient Catalyst System for the Palladium-Catalyzed Amination of Aryl Chlorides, Bromides, and Triflates

  摘要：

  Palladium complexes supported by (o-biphenyl)P(t-Bu)(2) (3) or (o-biphenyl)PCy2 (4) are efficient catalysts for the catalytic amination of a wide variety of aryl halides and triflates. Use of ligand 3 allows for the room-temperature catalytic amination of many aryl chloride, bromide, and triflate substrates, while ligand 4 is effective for the amination of functionalized substrates or reactions of acyclic secondary amines. The catalysts perform well for a large number of different substrate combinations at 80-110 degrees C, including chloropyridines and functionalized aryl halides and triflates using 0.5-1.0 mol % Pd; some reactions proceed efficiently at low catalyst levels (0.05 mol % Pd). These ligands are effective for almost all substrate combinations that have been previously reported with various other ligands, and they represent the most generally effective catalyst system reported to date. Ligands 3 and 4 are air-stable, crystalline solids that are commercially available. Their effectiveness is believed to be due to a combination of steric and electronic properties that promote oxidative addition, Pd-N bond formation, and reductive elimination.

  DOI：

  10.1021/jo991699y

文献信息

• Barton, Derek H. R.; Donnelly, Dervilla, M. X.; Finet, Jean-Pierre, Journal of the Chemical Society. Perkin transactions I, 1991, # 9, p. 2095 - 2102
  作者：Barton, Derek H. R.、Donnelly, Dervilla, M. X.、Finet, Jean-Pierre、Guiry, Patrick J.

  DOI：——

  日期：——
• LIGANDS FOR METALS AND METAL-CATALYZED PROCESSES
  申请人：MASSACHUSETTS INSTITUTE OF TECHNOLOGY

  公开号：EP1097158B1

  公开（公告）日：2006-01-25
• Ligands for metals and improved metal-catalyzed processes based thereon
  申请人：Massachussetts Institute of Technology

  公开号：EP1354887B1

  公开（公告）日：2007-04-25
• [EN] LIGANDS FOR METALS AND IMPROVED METAL-CATALYZED PROCESSES BASED THEREON<br/>[FR] LIGANDS POUR METAUX ET PROCESSUS PERFECTIONNES CATALYSES PAR DES METAUX BASES SUR CEUX-CI
  申请人：MASSACHUSETTS INST TECHNOLOGY

  公开号：WO2000002887A2

  公开（公告）日：2000-01-20

  One aspect of the present invention relates to novel ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom and carbon-carbon bond-forming reactions. The subject processes provide improvements in many features of the transition metal-catalyzed reactions, including the range of suitable substrates, reaction conditions, and efficiency.
• Simple, Efficient Catalyst System for the Palladium-Catalyzed Amination of Aryl Chlorides, Bromides, and Triflates
  作者：John P. Wolfe、Hiroshi Tomori、Joseph P. Sadighi、Jingjun Yin、Stephen L. Buchwald

  DOI：10.1021/jo991699y

  日期：2000.2.1

  Palladium complexes supported by (o-biphenyl)P(t-Bu)(2) (3) or (o-biphenyl)PCy2 (4) are efficient catalysts for the catalytic amination of a wide variety of aryl halides and triflates. Use of ligand 3 allows for the room-temperature catalytic amination of many aryl chloride, bromide, and triflate substrates, while ligand 4 is effective for the amination of functionalized substrates or reactions of acyclic secondary amines. The catalysts perform well for a large number of different substrate combinations at 80-110 degrees C, including chloropyridines and functionalized aryl halides and triflates using 0.5-1.0 mol % Pd; some reactions proceed efficiently at low catalyst levels (0.05 mol % Pd). These ligands are effective for almost all substrate combinations that have been previously reported with various other ligands, and they represent the most generally effective catalyst system reported to date. Ligands 3 and 4 are air-stable, crystalline solids that are commercially available. Their effectiveness is believed to be due to a combination of steric and electronic properties that promote oxidative addition, Pd-N bond formation, and reductive elimination.