2,3,4,5,6-Perfluoropyridine (cas: 700-16-3) belongs to pyridine derivatives. In contrast to benzene, Pyridine’s electron density is not evenly distributed over the ring, reflecting the negative inductive effect of the nitrogen atom. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Electric Literature of C5F5N
Gallium Hydrides and O/N-Donors as Tunable Systems in C-F Bond Activation was written by Jaeger, Alma D.;Walter, Ruben;Ehm, Christian;Lentz, Dieter. And the article was included in Chemistry – An Asian Journal in 2018.Electric Literature of C5F5N The following contents are mentioned in the article:
The gallium hydrides (iBu)2GaH , LiGaH4 and Me3N·GaH3 (1 c) hydrodefluorinate vinylic and aromatic C-F bonds when O and N donor mols. are present. LiGaH4 exhibits the highest reactivity. Quant. conversion to the hydrodefluorination (HDF) products could be observed for hexafluoropropene and 1,1,3,3,3-pentafluoropropene, 94% conversion of pentafluoropyridine and 49% of octafluorotoluene. Whereas for the HDF with LiGaH4 high conversions are observed when catalytic amounts of O donor mols. were added, for (iBu)2GaH, the addition of N donor mols. lead to higher conversions. The E/Z selectivity of the HDF of 1,1,3,3,3-pentafluoropropene is donor-dependent. DFT studies show that HDF proceeds in this case via the gallium hydride dimer-donor species and a hydrometalation/elimination sequence. Selectivities are sensitive to the choice of donor, as the right donor can lead to an on/off switching during catalysis, i.e., the hydrometalation step is accelerated by the presence of a donor, but the donor dissociates prior to elimination, allowing the inherently more selective donorless gallium systems to determine the selectivity. This study involved multiple reactions and reactants, such as 2,3,4,5,6-Perfluoropyridine (cas: 700-16-3Electric Literature of C5F5N).
2,3,4,5,6-Perfluoropyridine (cas: 700-16-3) belongs to pyridine derivatives. In contrast to benzene, Pyridine’s electron density is not evenly distributed over the ring, reflecting the negative inductive effect of the nitrogen atom. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Electric Literature of C5F5N
Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem