Cut to the chase: A ruthenium complex derived from 1‐adamantyl carboxylate (1‐AdCO2−) enabled highly regioselective intermolecular directalkylation of arenes with unactivated primary and secondary alkyl halides bearing β‐hydrogen atoms (see scheme; NMP=N‐methylpyrrolidinone).
An iridium-catalyzed remote site-switchable hydroarylation of alkenes controlled by two different ligands was reported. The protocol enables access to the products functionalized at the subterminal methylene and terminal methyl positions on an alkyl chain in good results. The results of the control experiments and DFT calculations demonstrate that the reaction involves a chain-walking process and the
Carboxylate-Assisted Ruthenium(II)-Catalyzed Hydroarylations of Unactivated Alkenes through C-H Cleavage
作者:Marvin Schinkel、Ilan Marek、Lutz Ackermann
DOI:10.1002/anie.201208446
日期:2013.4.2
Catalytic: Ruthenium(II)biscarboxylate complexes enabled highly effective hydroarylations of unactivatedalkenesthrough CH bond activation. This method has a broad substrate scope and allowed for versatile functionalizations of highly fluorinated alkenes.
Pyrene-Based Mono- and Di-N-Heterocyclic Carbene Ligand Complexes of Ruthenium for the Preparation of Mixed Arylated/Alkylated Arylpyridines
作者:Sergio Gonell、Eduardo Peris
DOI:10.1021/cs500735u
日期:2014.8.1
di-N-heterocyclic carbene ligands, two rutheniumcomplexes (one monometallic and the other dimetallic) have been obtained and fully characterized. The molecular structure of the dimetallic complex has been determined by means of X-ray diffraction studies. The electrochemical studies reveal that the metal–metal communication in the dimetallic complex is weak. The catalytic activity of both complexes has been