33674-97-4Relevant articles and documents
Photochemical C-H Silylation and Hydroxymethylation of Pyridines and Related Structures: Synthetic Scope and Mechanisms
Rammal, Fatima,Gao, Di,Boujnah, Sondes,Hussein, Aqeel A.,Lalevée, Jacques,Gaumont, Annie-Claude,Morlet-Savary, Fabrice,Lakhdar, Sami
, p. 13710 - 13717 (2020/11/30)
Considering the synthetic relevance of heteroarenes in various areas ranging from organic synthesis to medicinal chemistry, developing practically simple methodologies to access functionalized heteroarenes is of a significant value. Described herein is an efficient approach for C-H silylation and hydroxymethylation of pyridines and related heterocycles by the combination of silanes or methanol with readily available N-methoxypyridinium ions with a low catalyst loading (2 mol %) under blue light irradiation. The synthetic importance of the developed reactions is demonstrated by the synthesis of biologically relevant compounds. Electron paramagnetic resonance spectroscopy, quantum yield measurements, and density-functional theory calculations allowed us to understand reaction mechanisms of both photocatalytic reactions.
Substituted 2-acylpyridine-α-(N)-hetarlyhydrazones and medicaments containing the same
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, (2008/06/13)
Substituted 2-acylpyridine-α-(N)-hetarylhydrazones are described, which are suitable as active substances for the treatment of antimicrobial and in particular antimycobacterial diseases, as well as active substances for the treatment of malaria or malignant tumours. The compounds have a marked synergistic activity combined with inhibitors of folate synthase, dihydrofolic acid reductase, DNA-synthesis and RNA-synthesis.