Radical Anions of Aromatic Carbonitriles as Reagents for Arylation of Fluorinated Benzonitriles
作者:Roman Yu. Peshkov、Chunyan Wang、Elena V. Panteleeva、Tatyana V. Rybalova、Evgeny V. Tretyakov
DOI:10.1021/acs.joc.8b02904
日期:2019.1.18
and (1-naphthyl)benzonitriles, respectively. The radical anion acts as an ipso-C-nucleophile with consequent loss of the cyano group. The revealed new type of radical anion reactivity opens up the prospect of developing a general approach to fluorinated cyanobisarenes on the basis of an interaction of the cyanoarene radical anion with fluorinated substrates activated to aromatic nucleophilic substitution
Rational Development of Remote C−H Functionalization of Biphenyl: Experimental and Computational Studies
作者:Zhoulong Fan、Katherine L. Bay、Xiangyang Chen、Zhe Zhuang、Han Seul Park、Kap‐Sun Yeung、K. N. Houk、Jin‐Quan Yu
DOI:10.1002/anie.201915624
日期:2020.3.16
compounds is reported. Compared to the previous approach of installing a complex U-shaped template to achieve a molecular U-turn and assemble the large-sized cyclophane transition state for the remoteC-Hactivation, a synthetically useful phenyl nitrile functional group could also direct remote meta-C-H activation. This reaction provides a useful method for the modification of biaryl compounds because
Palladium-Catalyzed Direct C-H Arylation of Dicyanobenzenes
作者:Netta E. Ihanainen、Esa T. T. Kumpulainen、Ari M. P. Koskinen
DOI:10.1002/ejoc.201500288
日期:2015.5
A direct palladium-catalyzed C–H arylation method to synthesize biaryls from dicyanobenzenes has been developed. The reaction is selective towards C2-arylation of 1,3-dicyanobenzene and provides biaryls from both electron-rich and electron-poor aryl bromides containing para and metasubstituents. A variety of functional groups are tolerated, and yields up to 83 % can be obtained. The methodology can