64395-03-5Relevant academic research and scientific papers
Electrochemical Generation of Hypervalent Bromine(III) Compounds
Francke, Robert,Mohebbati, Nayereh,Sokolovs, Igors,Suna, Edgars
, p. 15832 - 15837 (2021/06/14)
In sharp contrast to hypervalent iodine(III) compounds, the isoelectronic bromine(III) counterparts have been little studied to date. This knowledge gap is mainly attributed to the difficult-to-control reactivity of λ3-bromanes as well as to their challenging preparation from the highly toxic and corrosive BrF3 precursor. In this context, we present a straightforward and scalable approach to chelation-stabilized λ3-bromanes by anodic oxidation of parent aryl bromides possessing two coordinating hexafluoro-2-hydroxypropanyl substituents. A series of para-substituted λ3-bromanes with remarkably high redox potentials spanning a range from 1.86 V to 2.60 V vs. Ag/AgNO3 was synthesized by the electrochemical method. We demonstrate that the intrinsic reactivity of the bench-stable bromine(III) species can be unlocked by addition of a Lewis or a Br?nsted acid. The synthetic utility of the λ3-bromane activation is exemplified by oxidative C?C, C?N, and C?O bond forming reactions.
The substituent effect of bridged triarylamine helicenes on light-emitting and charge transfer properties
Adachi, Yohei,Nakamoto, Masaaki,Shang, Rong,Yamamoto, Yohsuke,Yan, Chenting
, p. 457 - 460 (2020/05/19)
Methoxy-(7a), bromo-(7b), CF3-(7c) and hydroxyl-(7d) substituted bridged triarylamine helicenes were synthesized under mild conditions in 6598% yield. Their luminescence red-shifted with π-donating substituents and blue-shifted with the electro
Heterocyclic compounds and organic light-emitting diode including the same
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, (2020/12/11)
The present invention relates to a heterocyclic compound represented by [Chemical Formula 1] below and an organic light-emitting diode including the same. The organic light-emitting diode according to the present invention is excellent in view of luminous characteristics such as driving voltage, lifespan, and efficiency. [Chemical Formula 1].
Bridged triarylamines: A new class of heterohelicenes
Field, Jason E.,Hill, Thomas J.,Venkataraman
, p. 6071 - 6078 (2007/10/03)
A series of bridged triarylamines, which constitute a new class of heterohelicenes, have been synthesized using a simple three-step procedure. These compounds are shown to be highly luminescent chromophores and are capable of being oxidized. The solid-sta
Formation and rearrangement of dithioxo- and diselenoxophosphoranes carrying bulky 4-t-butyl-2,6-bis(methoxyalkyl)phenyl groups
Yoshifuji, Masaaki,Nakazawa, Masahiko,Sato, Takeshi,Toyota, Kozo
, p. 43 - 55 (2007/10/03)
[4-t-Butyl-2,6-bis(1-methoxy-1-methylethyl)phenyl]phosphine, [4-t-butyl- 2,6-bis(2-methoxy-1,1-dimethylethyl)phenyl]phosphine, and [4-t-butyl-2,6- bis(3-methoxy-1,1-dimethylpropyl)phenyl]phosphine were prepared and allowed to react with sulfur or selenium, to give heterocyclic compounds containing phosphorus-oxygen bond, via rearrangement of the methyl moiety of the methoxy group.
Solution and solid state studies of some new silicon and germanium compounds stabilized by tridentate ligands
Benin, Vladimir A.,Martin, James C.,Willcott, M. Robert
, p. 10133 - 10154 (2007/10/03)
The preparation and studies of novel heterocyclic compounds, containing silicon or germanium, is described. All of them incorporate the 2,6-bis(dialkylaminomethyl)-4-(1,1-dimethylethyl)phenyl tridentate ligand (Structures 1-2, Scheme 1) as a main substruc
Synthesis and NMR Characterization of Bis-Strapped Six-coordinate Fe(II) Cytochrome-C Model
Boitrel, Bernard,Lecas-Nawrocka, Alexandra,Rose, Eric
, p. 227 - 230 (2007/10/02)
The new hexadentate bis-strapped porphyrin 6 has been synthesized with two different ansa, bringing in an intramolecular way, a nitrogen base and a thioether sixth ligand both necessary to mimic the natural cytochrome-C protein. 1H NMR spectroscopy indicates clearly the six coordination of the iron atom.Key Words: cytochrome-C/ porphyrin/ modelisation/ six-coordinate Fe(II)
