title: Synthesis of 5H-Dibenzo[c,e]azepine-5,7(6H)-diones from Benzamides via Palladium-Catalyzed Double C-H Bond Activation.
abstract: A convenient and efficient method for the synthesis of 5H-dibenzo[c,e]azepine-5,7(6H)-diones from simple and readily available benzamides is described in this work. The palladium-catalyzed homocoupling of benzamides occurred via ortho-selective double C-H bond activation using the simplest amide CONH2as a directing group. The subsequent intramolecular condensation reaction proceeded smoothly to produce 5H-dibenzo[c,e]azepine-5,7(6H)-diones in satisfactory to excellent yields in one pot.
authors.affiliation: State Key Laboratory of Fine Chemicals, Dalian University of Technology , Dalian 116023, China.
authors.forename: Vijayakumar
authors.initials: V
authors.lastname: Kondapalli
authors.affiliation: State Key Laboratory of Fine Chemicals, Dalian University of Technology , Dalian 116023, China.
authors.forename: Xiaoqiang
authors.initials: X
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Fine Chemicals, Dalian University of Technology , Dalian 116023, China.|World Premier International-Advanced Institute for Materials Research (WPI-AIMR), Tohoku University , Sendai 980-8577, Japan.
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Yamamoto
authors.affiliation: State Key Laboratory of Fine Chemicals, Dalian University of Technology , Dalian 116023, China.
authors.forename: Ming
authors.identifier: 0000-0002-5179-3499
authors.initials: M
authors.lastname: Bao