COA of Formula: C5H3Br2NIn 2019 ,《Synthesis of Tetracoordinate Boron-Fused Benzoaceanthrylene Analogs via Tandem Electrophilic C-H Borylation》 was published in Chemistry – An Asian Journal. The article was written by Oda, Susumu; Abe, Hiroaki; Yasuda, Nobuhiro; Hatakeyama, Takuji. The article contains the following contents:
Benzoaceanthrylene analogs with tetracoordinate B at the ring junction were synthesized through tandem electrophilic C-H borylation of 2,6-dinaphthylpyridine followed by nucleophilic substitution. Notably, the [5,6]-annulation occurred selectively over [6,6]-annulation with the assistance of N coordination of the pyridine ring. The x-ray crystallog. anal. revealed the polycyclic skeleton with a distorted tetracoordinate B atom and a unique packing structure with intermol. π-π interaction. The photophys. and electrochem. properties of these benzoaceanthrylene analogs were evaluated by UV-visible spectroscopy and differential pulse voltammetry. The electron affinity of the F-substituted derivative is 3.49 eV from the ionization potential and optical band gap. Thus, this derivative is expected to be a promising n-type semiconducting material. In the experiment, the researchers used many compounds, for example, 2,6-Dibromopyridine(cas: 626-05-1COA of Formula: C5H3Br2N)
2,6-Dibromopyridine(cas: 626-05-1) belongs to pyridine. Pyridines, quinolines, and isoquinolines have found a function in almost all aspects of organic chemistry. Pyridine has found use as a solvent, base, ligand, functional group, and molecular scaffold. As structural elements, these moieties are potent electron-deficient groups, metal-directing functionalities, fluorophores, and medicinally important pharmacophores. COA of Formula: C5H3Br2N