Nickel-catalyzed methylation of aryl halides/tosylates with methyl tosylate
作者:Jiawang Wang、Jianhong Zhao、Hegui Gong
DOI:10.1039/c7cc06106d
日期:——
This work describes the cross-electrophile methylation of aryl bromides and aryl tosylates with methyl tosylate. The mild reaction conditions allow effective methylation of a wide set of heteroaryl electrophiles and dimethylation of dibromoarenes.
Lewis Acid Mediated Electrophilic Cyanation of 2,2′-Biphenols
作者:Wu Zhang、Wen Yang、Wanxiang Zhao
DOI:10.1021/acs.joc.0c00458
日期:2020.7.2
A Lewisacidmediated electrophilic cyanation of 2,2′-biphenols with a trifluoromethanesulfonyl (Tf) protecting group is reported. The cyanation reactions with less toxic, commercially available MeSCN as a cyanating reagent afforded a range of 3-cyan-2,2′-biphenols in moderate to high yields. The use of trifluoromethanesulfonyl (Tf) as a protecting group is crucial to the success of this transformation