Dihydridoboranes: Selective Reagents for Hydroboration and Hydrodefluorination was written by Phillips, Nicholas A.;O’Hanlon, James;Hooper, Thomas N.;White, Andrew J. P.;Crimmin, Mark R.. And the article was included in Organic Letters in 2019.Safety of 2,3,4,5,6-Perfluoropyridine The following contents are mentioned in the article:
The preparation of a new series of dihydridoboranes supported by N,N-chelating ligands, [R2NCH2CH2NAr]– (R = alkyl, Ar = aryl), is reported. These new boranes react selectively with carbonyls, imines, and a series of electron-deficient fluoroarenes. The reactivity is complementary to recognized reagents such as pinacolborane, catecholborane, NHC-BH3, and borane (BH3) itself. Selectivities are rationalized by invoking both open- and closed-chain forms of the reagents as part of equilibrium mixtures This study involved multiple reactions and reactants, such as 2,3,4,5,6-Perfluoropyridine (cas: 700-16-3Safety of 2,3,4,5,6-Perfluoropyridine).
2,3,4,5,6-Perfluoropyridine (cas: 700-16-3) belongs to pyridine derivatives. Pyridine has a conjugated system of six è?electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hçckel criteria for aromatic systems. One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.Safety of 2,3,4,5,6-Perfluoropyridine