Cyanophenylation of Aromatic Nitriles by Terephthalonitrile Dianion: Is the Charge-Transfer Complex a Key Intermediate?
作者:Elena V. Panteleeva、Lyudmila N. Shchegoleva、Viktor P. Vysotsky、Leonid M. Pokrovsky、Vitalij D. Shteingarts
DOI:10.1002/ejoc.200400851
日期:2005.6
The interaction of terephthalonitrile (1) dianion (12–) with benzonitrile (2) or m-tolunitrile (3) provides 4,4'-dicyanobiphenyl (4) or 4,4'-dicyano-2-methylbiphenyl (5), respectively. This result shows that dianion 12– serves as a reagent for p-cyanophenylation of aromatic nitriles. Based on experimental data, such as the chemical trapping of the 4,4'-dicyanobiphenyl precursor 4-cyano-1-(p-cyanophenyl)cyclohexa-2