Computed Properties of C5H5FN2. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 5-Amino-2-fluoropyridine, is researched, Molecular C5H5FN2, CAS is 1827-27-6, about Divergent Aminocarbonylations of Alkynes Enabled by Photoredox/Nickel Dual Catalysis. Author is Zhao, Xian; Feng, Xiaoliang; Chen, Fan; Zhu, Shengqing; Qing, Feng-Ling; Chu, Lingling.
A metallaphotoredox-catalyzed strategy for the selective and divergent aminocarbonylation of alkynes with amines and 1 atm of CO was reported. This synergistic protocol not only enables the Markovnikov-selective hydroaminocarbonylation of alkynes to afford α,β-unsaturated amides, but also facilitated a sequential four-component hydroaminocarbonylation/radical alkylation in the presence of tertiary and secondary alkyl boronate esters, which allowed for straightforward conversion of alkynes into corresponding amides. Preliminary mechanistic studied disclose that a photoinduced oxidative insertion of aniline and CO into nickel followed by a migratory insertion of (carbamoyl)nickel species was involved.
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