Copper-Mediated Transformation of Organosilanes to Nitriles with DMF and Ammonium Iodide
摘要:
Cyanation of aryl-, diaryldimethyl-, and styrylsilanes was developed for the first time under copper-mediated oxidative conditions using ammonium iodide and DMF as the combined source of nitrogen and carbon atom of the introduced cyano unit, respectively. The reaction was observed to proceed in a two-step process: initial conversion of organosilanes to their iodo intermediates and then cyanation. This method has a broad substrate scope with high functional group tolerance.
Copper-Mediated Transformation of Organosilanes to Nitriles with DMF and Ammonium Iodide
摘要:
Cyanation of aryl-, diaryldimethyl-, and styrylsilanes was developed for the first time under copper-mediated oxidative conditions using ammonium iodide and DMF as the combined source of nitrogen and carbon atom of the introduced cyano unit, respectively. The reaction was observed to proceed in a two-step process: initial conversion of organosilanes to their iodo intermediates and then cyanation. This method has a broad substrate scope with high functional group tolerance.
Copper-catalyzed Carboxylation of Unactivated Aryl- and Alkenylsilanes with Carbon Dioxide
作者:Woo-Jin Yoo、Junpei Kondo、Shū Kobayashi
DOI:10.1246/cl.190577
日期:2019.10.5
A mild synthetic protocol for the preparation of aryl and alkenyl carboxylic acids was developed through a copper-catalyzedcarboxylation reaction of organosilanes with carbondioxide. The key to t...
A copper-catalyzedelectrophilicamination of aryl[(2-hydroxymethyl)phenyl]dimethylsilanes with O-acylated hydroxylamines has been developed to afford the corresponding anilines in good yields. The catalytic reaction proceeds very smoothly under mild conditions and tolerates a wide range of functional groups.