50672-84-9Relevant articles and documents
Aggregation-induced emission active D-π-A binaphthyl luminophore with dual-mode fluorescence
Sasaki, Shunsuke,Niko, Yosuke,Igawa, Kazunobu,Konishi, Gen-Ichi
, p. 33474 - 33477 (2014)
A novel aggregation-induced emission active dye consisting of a simple and highly solvatochromic D-π-A type 1,1′-binaphthyl chromophore was synthesised. The new dye exhibited dual-mode fluorescence in response to different types of restriction of intramolecular rotation; aggregation induces green emission, and blue emission is observed in a glassy matrix. the Partner Organisations 2014.
Palladium-Catalyzed Regiospecific peri- And ortho-C-H Oxygenations of Polyaromatic Rings Mediated by Tunable Directing Groups
Hu, Lihong,Jiang, Jing,Lin, Yaoyu,Ma, Congzhe,Song, Wanbin,Yuan, Dandan,Zhang, Yinan
supporting information, p. 279 - 284 (2021/01/13)
An efficient divergent approach of Pd-catalyzed C-H oxygenation of polyaromatic rings is described. Reversible directing groups enable regiospecific peri- and ortho-oxygenation to readily access a wide array of polyaromatic phenols without pre- and postmanipulation of directing groups. The systematic mechanistic investigation, including deuterium-labeling experiments, palladacycle trapping, and DFT calculations, reveals that the tunable ligand-assisted C-H bond cleavage played a crucial role during the reaction process.
Synthesis of 2,6-dimethoxy-9-phenyl-1H-phenalen-1-one and structural revision of the benzoindenone from Eichhornia crassipes
Li, Xiaowan,Si, Tongxu,Ku, Chuenfai,Zhang, Hongjie,Wang, Mingzhong,Chan, Albert S.C.
, p. 183 - 189 (2019/01/21)
The total synthesis of the natural phytoalexin 2,6-dimethoxy-9-phenyl-1H-phenalen-1-one (3) isolated from Eichhornia crassipes was accomplished in seven steps. The synthetic strategy included a Friedel-Crafts acylation and a Jacobsen-Katsuki epoxidation as the key reactions to obtain the target compound. Based on a comparison of the NMR data and a crystal structure of 3, the previously proposed structure of 2,5-dimethoxy-4-phenyl-benzoindenone (2) isolated from the same plant has been revised.