Microwave-assisted Negishi and Kumada cross-coupling reactions of aryl chloridesElectronic supplementary information (ESI) available: Experimental procedures and spectral data. See http://www.rsc.org/suppdata/cc/b3/b313887a/
作者:Peter Walla、C. Oliver Kappe
DOI:10.1039/b313887a
日期:——
Rapid Pd or Ni-catalyzed microwave-accelerated Negishi and Kumada cross-coupling reactions of aryl chlorides in solution and on solid phase are reported.
Nickel‐Catalyzed α‐Carbonylalkylarylation of Vinylarenes: Expedient Access to γ,γ‐Diarylcarbonyl and Aryltetralone Derivatives
作者:Shekhar KC、Roshan K. Dhungana、Namrata Khanal、Ramesh Giri
DOI:10.1002/anie.201913435
日期:2020.5.18
We report a Ni-catalyzed regioselective α-carbonylalkylarylation of vinylarenes with α-halocarbonyl compounds and arylzinc reagents. The reaction works with primary, secondary and tertiary α-halocarbonyl molecules, and electronically varied arylzinc reagents. The reaction generates γ,γ-diarylcarbonyl derivatives with α-secondary, tertiary and quaternary carbon centers. The products can be readily converted
Novel Rh(I)-Catalyzed Reaction of Arylzinc Compounds with Methyl Halides
作者:Kabir M. Hossain、Kentaro Takagi
DOI:10.1246/cl.1999.1241
日期:1999.11
The cross-coupling reactions of arylzinc compounds with methyl iodide or substituted methyl halides like benzyl bromides took place smoothly by the catalysis of Rh(I)-dppf complex.
Ultrasound-Promoted Synthesis of Arylzinc Compounds Using Zinc Powder and Their Application to Palladium(0)-Catalyzed Synthesis of Multifunctional Biaryls
作者:Kentaro Takagi
DOI:10.1246/cl.1993.469
日期:1993.3
Arylzinc compounds containing electron-withdrawing groups such as CO2CH3, CON(CH3)2, CN, Br, Cl, or CF3 at ortho position were prepared readily by the ultrasound-promoted reaction of aryl iodides with zinc powder, which were applied to palladium(0)-catalyzed cross-coupling with aryl halides to afford unsymmetrical and multifunctional biaryls in good yields.
Addition of arylzincs to aldehydes was achieved by making use of the novel transmetallation of arylzincs into Cr3+ compounds. Various α-substituted benzyl alcohols or 3-substituted 1(3H)-isobenzofuranones, containing reactive functional groups, were synthesized in good yields. Me3SiCl exerted beneficial effects on the reaction.