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: 5451-40-1, is researched, Molecular C5H2Cl2N4, about Development of a quinolinium/cobaloxime dual photocatalytic system for oxidative C-C cross-couplings via H2 release, the main research direction is quinoline photocatalyst oxidative cross coupling Minisci alkylation photocyclization.Synthetic Route of C5H2Cl2N4.
Designing mol. photocatalysts for potent photochem. reactivities ranks among the most challenging but rewarding endeavors in synthetic photochem. Herein, we document a quinoline-based organo-photoredox catalyst, 2,4-bis(4-methoxyphenyl)quinoline (DPQN2,4-di-OMe), that could be assembled via the facile aldehyde-alkyne-amine (A3) couplings. Unlike the reported photocatalysts, which impart their photoreactivities as covalently linked entities, our mechanistic studies suggested a distinct proton activation mode of DPQN2,4-di-OMe. Simply upon protonation, DPQN2,4-di-OMe could reach a highly oxidizing excited state under visible-light irradiation (E*1/2 = +1.96 V vs a standard calomel electrode, SCE). On this basis, the synergistic merger of DPQN2,4-di-OMe and cobaloxime formulated an oxidative cross-coupling platform, enabling the Minisci alkylation and various C-C bond-forming reactions with a diverse pool of radical precursors in the absence of chem. oxidants. The catalytic loading of DPQN2,4-di-OMe could be minimized to 0.025 mol % (TON = 3360), and a polymer-supported photocatalyst, DPQN2,4-di-OR@PS, was prepared to facilitate catalyst recycling (at a 0.50 mmol % loading and up to five times without significant loss of photosynthetic efficiency).
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Reference:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem