Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 1827-27-6, is researched, Molecular C5H5FN2, about Asymmetric synthesis of heterocyclic chloroamines and aziridines by enantioselective protonation of catalytically generated enamines, the main research direction is heterocyclic chloroamine enantioselective synthesis protonation chloroenamine; aziridine enantioselective synthesis catalyst.Name: 5-Amino-2-fluoropyridine.
We report a method for the synthesis of chiral vicinal chloroamines via asym. protonation of catalytically generated prochiral chloroenamines using chiral Bronsted acids. The process is highly enantioselective, with the origin of asymmetry and catalyst substituent effects elucidated by DFT calculations We show the utility of the method as an approach to the synthesis of a broad range of heterocycle-substituted aziridines by treatment of the chloroamines with base in a one-pot process, as well as the utility of the process to allow access to vicinal diamines.
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