Direct amide synthesis <i>via</i> Ni-mediated aminocarbonylation of arylboronic acids with CO and nitroarenes
作者:Ni Shen、Chi Wai Cheung、Jun-An Ma
DOI:10.1039/c9cc06638a
日期:——
Herein we describe an alternative and unconventional approach of an aminocarbonylation reaction to access aryl amides from readily available and low-cost arylboronic acids and nitroarenes. Nickel metal can serve as both reductant and catalyst in this direct aminocarbonylation. This protocol exhibits a good functional group compatibility and allows a variety of aryl amides to be synthesized, including
Reagent- and Metal-Free Anodic C−C Cross-Coupling of Aniline Derivatives
作者:Lara Schulz、Mathias Enders、Bernd Elsler、Dieter Schollmeyer、Katrin M. Dyballa、Robert Franke、Siegfried R. Waldvogel
DOI:10.1002/anie.201612613
日期:2017.4.18
The dehydrogenativecross‐coupling of aniline derivatives to 2,2′‐diaminobiaryls is reported. The oxidation is carried out electrochemically, which avoids the use of metals and reagents. A large variety of biphenyldiamines were thus prepared. The best results were obtained when glassy carbon was used as the anode material. The electrosynthetic reaction is easily performed in an undivided cell at slightly
Thioarylation of anilines using dual catalysis: two-step synthesis of phenothiazines
作者:Amy C. Dodds、Sabrina Puddu、Andrew Sutherland
DOI:10.1039/d2ob01082h
日期:——
analogues. The thioarylated adducts were then cyclised to the desired phenothiazines using either an Ullmann–Goldberg or Buchwald–Hartwig coupling reaction. The dual catalytic thioarylation and copper(I)-catalysed cyclisation approach was used for the four-step synthesis of methopromazine, a neuroleptic agent with antipsychotic activity.
Manganese-Mediated Reductive Transamidation of Tertiary Amides with Nitroarenes
作者:Chi Wai Cheung、Jun-An Ma、Xile Hu
DOI:10.1021/jacs.8b03739
日期:2018.6.6
an important class of organic compounds, which have widespread industrial applications. Transamidation of amides is a convenient method to generate new amides from existing ones. Tertiary amides, however, are challenging substrates for transamidation. Here we describe an unconventional approach to the transamidation of tertiary amides using nitroarenes as the nitrogen source under reductive conditions