19230-85-4Relevant academic research and scientific papers
Carbopalladation of nitriles: Synthesis of 2,3-diarylindenones and polycyclic aromatic ketones by the Pd-catalyzed annulation of alkynes and bicyclic alkenes by 2-iodoarenenitriles
Pletnev, Alexandre A.,Tian, Qingping,Larock, Richard C.
, p. 9276 - 9287 (2007/10/03)
2-Iodobenzonitrile, its derivatives, and various heterocyclic analogues undergo palladium(O)-catalyzed annulation onto diarylacetylenes or bicyclic alkenes to afford 2,3-diarylindenones and polycyclic aromatic ketones in very good to excellent yields. This reaction represents one of the first examples of the addition of an organopalladium moiety to the carbon-nitrogen triple bond of a nitrile. The reaction is compatible with a number of functional groups. A reaction mechanism, as well as a model accounting for the electronic effects of substituents on the aromatic ring of the nitrile, is proposed.
