25308-69-4Relevant articles and documents
Synthesis of axially chiral 1,8-diarylnaphthalene ligands and application in asymmetric catalysis: An intriguing fluorine effect
Ghosh, Harisadhan,Vavilala, Ravishashidhar,Szpilman, Alex M.
, p. 79 - 84 (2015/02/19)
A fluorinated and a non-fluorinated axially chiral 1,8-diarylnaphthalene ligand have been synthesized through an Ullmann and Suzuki coupling reaction based strategy. A practical methodology for the successful chiral resolution of the newly synthesized catechol based moiety is presented. We also disclose the preliminary application of these axially chiral molecules as ligands in asymmetric transformation reactions.
Efficient tuning of electroluminescence from sky-blue to deep-blue by changing the constitution of spirobenzofluorene derivatives
Liang, Houjie,Wang, Xinxin,Zhang, Xingye,Ge, Ziyi,Ouyang, Xinhua,Wang, Suidong
, p. 57 - 63 (2014/05/20)
Two novel benzimidazole-attached spiro[benzofluorene] derivatives, 2,2′-(spiro[benzo[c]fluorine-7,9′-fluorene]-5,9-diylbis(4, 1-phenylene))bis(1-phenyl-1H-benzo[d]imidazole) and 2,2′-(spiro[benzo-[de] anthracene-7,9′-fluorene]-2′,3-diylbis(4,1-phenylene)) bis(1-phenyl-1H-benzo[d]imidazole), were prepared by a Suzuki coupling reaction. Their photophysical and photochemical properties were studied systemically. The fluorescent organic light-emitting diodes were fabricated by using them as the emitters, all of them showed strong blue emission. Interestingly, from the benzoanthracene derived compound a high color purity was found with Commission de L'Eclairage 1931 chromaticity coordinates of (0.15, 0.10) and an efficiency of 1.96 cd/A. To the best of our knowledge, this is the first time to obtain a deep-blue emission with spiro[benzofluorene] derivative in a nondoped device.
Cycloheptaphenalen, ein starker Elektronendonor mit nichtalternierendem ?-Elektronensystem
Sugihara, Yoshikazu,Yamamoto, Hiromasa,Mizoue, Kenji,Murata, Ichiro
, p. 1283 - 1285 (2007/10/02)
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