Visible-Light-Mediated C–H Alkylation of Pyridine Derivatives
作者:Fatima Rammal、Di Gao、Sondes Boujnah、Annie−Claude Gaumont、Aqeel A. Hussein、Sami Lakhdar
DOI:10.1021/acs.orglett.0c02863
日期:2020.10.2
We report herein a visible-light-mediated C–H alkylation of pyridine derivatives that proceeds by simple combination of a large variety of N-alkoxypyridinium ions with alkanes in the presence of 2 mol % of fac-Ir(ppy)3 under blue illumination. The mild reaction conditions together with the high group functional tolerance make of this process a useful synthetic platform for the construction of structurally
Photochemical C–H Silylation and Hydroxymethylation of Pyridines and Related Structures: Synthetic Scope and Mechanisms
作者:Fatima Rammal、Di Gao、Sondes Boujnah、Aqeel A. Hussein、Jacques Lalevée、Annie-Claude Gaumont、Fabrice Morlet-Savary、Sami Lakhdar
DOI:10.1021/acscatal.0c03726
日期:2020.11.20
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