title: Synthesis of 1,2-borazaronaphthalenes from imines by base-promoted borylation of C-H bond.
abstract: A new route from benzylic imines permits the synthesis of 1,2-borazaronaphthalenes in good yields. The reaction involves formation of the enamidyl dibromoborane, which undergoes base-promoted borylation of the nearby aromatic C-H bond. Electrophilic attack of the boron species onto the benzylic arene is supported by the slow borylation of arenes substituted with electron-withdrawing groups. The resultant boron bromides can be easily substituted with lithium reagents to provide a range of products. The electronic properties of these 1,2-borazaronaphthalene derivatives have been investigated by UV-vis and fluorescence spectroscopy.
authors.affiliation: State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Cooperative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, People's Republic of China.
authors.forename: Xinwang
authors.initials: X
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Cooperative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, People's Republic of China.
authors.forename: Pengbo
authors.initials: P
authors.lastname: Wu
authors.affiliation: State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Cooperative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, People's Republic of China.
authors.forename: Jianfeng
authors.initials: J
authors.lastname: Li
authors.affiliation: State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Cooperative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, People's Republic of China.
authors.forename: Chunming
authors.initials: C
authors.lastname: Cui