22280-32-6Relevant articles and documents
Rhodium/copper-catalyzed annulation of benzimides with internal alkynes: Indenone synthesis through sequential C-H and C-N cleavage
Li, Bi-Jie,Wang, Hao-Yuan,Zhu, Qi-Lei,Shi, Zhang-Jie
supporting information; experimental part, p. 3948 - 3952 (2012/05/20)
Doubled up: A rhodium(III)/copper(II) system co-catalyzes the annulation of benzimides with internal alkynes for the synthesis of indenones (see scheme; Cp=C5Me5). The reaction involves an uncommon nucleophilic addition of a transition-metal-carbon bond to an imide moiety. This novel reaction provides a facile route to synthesize indenones from readily available benzimides and internal alkynes. Copyright