Dilithium Amides as a Modular Bis-Anionic Ligand Platform for Iron-Catalyzed Cross-Coupling
作者:Peter G. N. Neate、Bufan Zhang、Jessica Conforti、William W. Brennessel、Michael L. Neidig
DOI:10.1021/acs.orglett.1c02053
日期:2021.8.6
Dilithium amides have been developed as a bespoke and general ligand for iron-catalyzed Kumada–Tamao–Corriu cross-coupling reactions, their design taking inspiration from previous mechanistic and structural studies. They allow for the cross-coupling of alkyl Grignard reagents with sp2-hybridized electrophiles as well as aryl Grignard reagents with sp3-hybridized electrophiles. This represents a rare
Iron(<scp>iii</scp>) amine-bis(phenolate) complexes as catalysts for the coupling of alkyl halides with aryl Grignard reagents
作者:Rajoshree Roy Chowdhury、Angela K. Crane、Candace Fowler、Philip Kwong、Christopher M. Kozak
DOI:10.1039/b713647a
日期:——
Catalytic cross-coupling of aryl Grignard reagents with primary and secondary alkyl halides bearing beta-hydrogens is achieved using Fe(III) amine-bis(phenolate) halide complexes.
Catalysis ofFriedel-Crafts Alkylation by a Montmorillonite Doped with Transition-Metal Cations
作者:Pierre Laszlo、Arthur Mathy
DOI:10.1002/hlca.19870700310
日期:1987.5.6
Catalysts are obtained by exchange of the interstitial cations in the K10 montmorillonite. They are applied to Friedel-Crafts alkylations with halides, alcohols, and olefins. They are quite effective even with unactivated hydrocarbons. Isomer distribution depends little on the catalyst used. Thermodynamic equilibration does not take place, the reactions appear to be kinetically controlled. Efficiency
Iron(ii) complexes with functionalized amine-pyrazolyl tripodal ligands in the cross-coupling of aryl Grignard with alkyl halides
作者:Fei Xue、Jin Zhao、T. S. Andy Hor
DOI:10.1039/c1dt10258c
日期:——
Structurally distinctive Fe(II) complexes with furan, thiophene and pyridine functionalized amine-pyrazolyl tripodal hybrid ligands have been synthesized and crystallographically characterized. The tether substituent at the central amine plays an active role in determining the coordination mode of the ligand and the metal geometry. All complexes are catalytically active towards cross-coupling of aryl Grignard reagents with primary and secondary alkyl halides with β-hydrogen under ambient conditions. ESI-MS spectra analysis revealed the ligand-stabilised Fe(II) and Mg(II) species.
作者:Laurine R. Zupp、Veronica L. Campanella、DiAndra M. Rudzinski、François Beland、Ronny Priefer
DOI:10.1016/j.tetlet.2012.07.131
日期:2012.9
yields in shorter reaction times. This decreases total ‘man-hours’ in a synthetic setting. Another technique used in organic chemistry to decrease manual manipulations, is solid support reagents. The benefits of this approach is that upon completion of a reaction, a simple filtration can be performed which expedites the work-up and also produces less organic waste. Friedel-Crafts alkylation has been