Preparation and Palladium-Catalyzed Cross-Coupling of Aryl Triethylammonium Bis(catechol) Silicates with Aryl Triflates
作者:W. Michael Seganish、Philip DeShong
DOI:10.1021/jo035309q
日期:2004.2.1
Pentavalent aryl and heteroaryl bis(catechol) silicates undergo palladium-catalyzedcross-coupling with aryl and heteroaryl triflates in the presence of a fluoride source in excellent yields. These solid, air-stable bis(catechol) silicates are prepared from a high-yielding displacement reaction between catechol and an aryl siloxane in the presence of an amine base. The cross-couplingreaction is tolerant
Catalytic Organocopper Chemistry from Organosiloxane Reagents
作者:Jessica R. Herron、Vincenzo Russo、Edward J. Valente、Zachary T. Ball
DOI:10.1002/chem.200901438
日期:2009.9.7
Organosilanes serve as precursors to organocopper intermediates in a copper‐catalyzed addition to vinylepoxides (see scheme). Ligand structure has a significant effect on the reactivity of the organocopper intermediate, and the catalysis proceeds without the need for a stoichiometric silane activator such as fluoride.
Palladium-Catalyzed Direct Arylation of Polyfluoroarenes with Organosilicon Reagents
作者:Huixin Fan、Yaping Shang、Weiping Su
DOI:10.1002/ejoc.201402091
日期:2014.6
The palladium-catalyzeddirectarylation of polyfluoroarenes with organosiliconreagents was achieved by establishing general reaction conditions. This protocol was compatible with a broad range of functional groups and offered the desired products in moderate to good yields.
The general and efficient silylation of aryl halides has been developed utilizing triethoxysilane and a rhodium catalyst, The substrate scope is broad and includes ortho-, meta-, and para-substituted electron-rich and -deficient aryl iodides. In addition, the silylation of aryl bromides and fluoroalkanesulfonates proceeded in the presence of tetra-n-butylammonium iodide. (C) 2007 Elsevier Ltd. All rights reserved.
Synthesis of Arylsilanes via Palladium(0)-Catalyzed Silylation of Aryl Halides with Hydrosilane