Copper-Mediated C–N Coupling of Arylsilanes with Nitrogen Nucleophiles
作者:Johannes Morstein、Eric D. Kalkman、Chen Cheng、John F. Hartwig
DOI:10.1021/acs.orglett.6b02543
日期:2016.10.21
A method for the oxidative coupling of arylsilanes with nitrogen nucleophiles is reported. This method occurs with a broad range of heptamethyltrisiloxylarenes and nitrogen nucleophiles, proceeds with the arylsilane as limiting reagent, and does not require a fluoride activator with electron-poor arylsilanes. The combination of this method with C–H silylation generates arylamines from unactivated arenes
Reaction mixtures for silvlating arene substrates and methods of using such reaction mixtures to silyiate the arene substrates are provided. Exemplary reaction mixtures include the arene substrate, a liganded metal catalyst, a hydrogen acceptor and an organic solvent. The reaction conditions allow for diverse substituents on the arene substrate.
Copper‐Mediated Fluorination of Aryl Trisiloxanes with Nucleophilic Fluoride
作者:Ruth Dorel、Philip Boehm、Daniel P. Schwinger、John F. Hartwig
DOI:10.1002/chem.201905040
日期:2020.2.6
the nucleophilicfluorination of heptamethyl aryl trisiloxanes to form fluoroarenes is reported. The reaction proceeds in the presence of Cu(OTf)2 and KHF2 as the fluoridesource under mild conditions for a broad range of heptamethyltrisiloxyarenes with high functional group tolerance. The combination of this method with the silylation of aryl C-H bonds enables the regioselective fluorination of non-activated