A simple synthetic entryway into palladium cross-coupling catalysis
作者:Caroline M. Zinser、Fady Nahra、Marcel Brill、Rebecca E. Meadows、David B. Cordes、Alexandra M. Z. Slawin、Steven P. Nolan、Catherine S. J. Cazin
DOI:10.1039/c7cc02487h
日期:——
The simple synthesis of a family of palladates containing an imidazolium counterion is presented. These “ate” complexes can be easily converted into well-defined palladium–N-heterocyclic carbene (NHC) complexes. The synthetic protocols leading to the “ate” and to the Pd–NHC neutral complexes have been exemplified with various NHC ligands. The palladates prove efficient pre-catalysts enabling Suzuki–Miyaura
Palladium-Catalyzed α-Arylation of Arylketones at Low Catalyst Loadings
作者:Enrico Marelli、Martin Corpet、Sian R. Davies、Steven P. Nolan
DOI:10.1002/chem.201404900
日期:2014.12.22
involves the use of a preformed, bench‐stable Pd–N‐heterocyclic carbene pre‐catalyst bearing IHept as an ancillary ligand, and allows the coupling of various functionalized coupling partners at very lowcatalystloading. Careful choice of the solvent/base system was crucial to obtain optimum catalyst performance. The pre‐catalyst was also successfully tested in the synthesis of an industrially relevant
[EN] SYNTHESES OF N-HETEROCYCLIC CARBENES AND INTERMEDIATES THEREFOR<br/>[FR] SYNTHÈSES DE CARBÈNES N-HÉTÉROCYCLIQUES ET INTERMÉDIAIRES À CET EFFET
申请人:UNIV ST ANDREWS
公开号:WO2014108671A1
公开(公告)日:2014-07-17
A method of preparing a 2,6 disubstituted anilines includes, reacting a 2-amino isophtha!ic acid diester with sufficient Grignard reagent R2CH2MgX to form the corresponding diol product, dehydrating the diol product to the corresponding dialkene; and hydrogenating the diol product to form the corresponding aniline. The 2,6 disubstituted anilines can be used to produce N-Heterocyciic Carbenes (NHCs). The NHCs can find application in various fields such as organic synthesis, catalysis and macromolecular chemistry. Palladium catalysts containing the NHCs are also described.
[EN] METAL ORGANIC COMPOUNDS<br/>[FR] COMPOSÉS ORGANOMÉTALLIQUES
申请人:UMICORE AG & CO KG
公开号:WO2018115029A1
公开(公告)日:2018-06-28
Disclosed are novel metal organic compounds, a method for their production and their use to make catalytically active compounds, which can be used in well-established methods of organic synthesis.
SYNTHESES OF N-HETEROCYCLIC CARBENES AND INTERMEDIATES THEREFOR
申请人:UNIVERSITY COURT OF THE UNIVERSITY OF ST ANDREWS
公开号:US20150361049A1
公开(公告)日:2015-12-17
A method of preparing a 2,6 disubstituted anilines includes, reacting a 2-amino isophthalic acid diester with sufficient Grignard reagent R
2
CH
2
MgX to form the corresponding diol product, dehydrating the diol product to the corresponding dialkene; and hydrogenating the diol product to form the corresponding aniline. The 2,6 disubstituted anilines can be used to produce N-Heterocyciic Carbenes (NHCs). The NHCs can find application in various fields such as organic synthesis, catalysis and macromolecular chemistry. Palladium catalysts containing the NHCs are also described.