title: Rh(III)-catalyzed relay carbenoid functionalization of aromatic C-H bonds: access to π-conjugated fused heteroarenes.
abstract: A novel Rh(III)-catalyzed relay cross-coupling/cyclization cascade between arylketoimines and diazoesters is described. This transformation provides a concise access to unique π-conjugated 1-azaphenalenes (1-APLEs) via a double aryl Csp(2)-H bond carbenoid functionalization process. As illustrative examples, the 1-APLE-based π-conjugated molecules which possess low-lying HOMO levels could be converted to promising organic optoelectronic materials.
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510641, China. zengwei@scut.edu.cn.
authors.forename: Ying
authors.initials: Y
authors.lastname: Xie
authors.forename: Xun
authors.initials: X
authors.lastname: Chen
authors.forename: Xin
authors.initials: X
authors.lastname: Liu
authors.forename: Shi-Jian
authors.initials: SJ
authors.lastname: Su
authors.forename: Jianzhang
authors.initials: J
authors.lastname: Li
authors.forename: Wei
authors.initials: W
authors.lastname: Zeng