One-Pot Catalytic Approach for the Selective Aerobic Synthesis of Imines from Alcohols and Amines Using Efficient Arene Diruthenium(II) Catalysts under Mild Conditions
作者:Sundar Saranya、Rengan Ramesh、Jan Grzegorz Małecki
DOI:10.1002/ejoc.201701408
日期:2017.12.8
A green and efficient catalytic approach for the selective synthesis of imines in air at room temperature was achieved with the aid of newly synthesised diruthenium(II) complexes [(η6-p-cymene)2Ru2Cl2(µ-L)] containing substituted 1,2-diacylhydrazine ligands. All the new complexes were fully characterised by analytical and spectroscopic techniques. The solid-state structure of a representative complex
借助新合成的含有取代 1,2 的二钌 (II) 配合物 [(η6-p-cymene)2Ru2Cl2(μ-L)],实现了一种绿色高效的室温下在空气中选择性合成亚胺的催化方法-二酰基肼配体。通过分析和光谱技术对所有新复合物进行了充分表征。通过单晶 X 射线衍射分析解决了代表性复合物的固态结构。二钌 (II) 配合物还可将醇选择性有氧氧化为醛。催化反应在作为绿色廉价氧化剂的空气存在下进行,并释放出作为唯一副产物的水。提出了亚胺形成的合理机制,据信这是通过醛中间体进行的。
Nucleophilic difluoroalkylation of benzophenones, benzaldehydes and Schiff's bases by tetrafluoroethyl ether and difluoroacetamide
From gem-difluoromethyl group of 1,1,2,2-tetrafluoroethyl ether and 2,2-difluoroalkylamide, proton can be removed by potassium bis(trimethylsilyl)amide in DMF, THF or toluene. The generated nucleophiles are then condensed with benzophenones, benzaldehydes or Schiff'sbases to provide new fluorinated alcohols and amines. Some interesting solvent effects are also observed.
Alkali Metal–Promoted Facile Synthesis of Secondary Amines from Imines and Carbodiimides
作者:Tarun K. Panda、Indrani Banerjee、Shweta Sagar
DOI:10.1002/aoc.5765
日期:2020.9
We present here an efficient method for the hydroboration of aldimines (‐C=N‐) with pinacolborane (HBpin) using an alkali metal catalyst, potassium benzyl. The reaction was accomplished with unprecedented catalytic efficiency under mild and solvent‐free conditions to afford the high yield of the corresponding N‐boryl amines up to 97%. Various functionalities on aldimines were incorporated for hydroboration
Deodhar, K. D.; Samant, S. D.; Pednekar, S. R., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1982, vol. 21, # 1, p. 67 - 68
作者:Deodhar, K. D.、Samant, S. D.、Pednekar, S. R.、Kanekar, D. S.、Inamdar, A. A.、Patkar, P. Y.
DOI:——
日期:——
Steinhart, Justus Liebigs Annalen der Chemie, 1887, vol. 241, p. 340