title: Rhodium/copper-catalyzed annulation of benzimides with internal alkynes: indenone synthesis through sequential C-H and C-N cleavage.
abstract: 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*=C(5) Me(5)). 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.
authors.affiliation: Beijing National Laboratory of Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, China.
authors.forename: Bi-Jie
authors.initials: BJ
authors.lastname: Li
authors.forename: Hao-Yuan
authors.initials: HY
authors.lastname: Wang
authors.forename: Qi-Lei
authors.initials: QL
authors.lastname: Zhu
authors.forename: Zhang-Jie
authors.initials: ZJ
authors.lastname: Shi
mesh_terms: D000480:Alkynes / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry; D002384:Catalysis; D003300:Copper / Q000737:chemistry*; D003500:Cyclization; D006859:Hydrogen / Q000737:chemistry; D007094:Imides / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry; D012238:Rhodium / Q000737:chemistry*
chemical_list: D000480:Alkynes; D007094:Imides; D002244:Carbon; D003300:Copper; D006859:Hydrogen; D012238:Rhodium; D009584:Nitrogen