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In the literature, C–N coupling methods for the reaction of iodo-oxazole with 2-pyridinone were found to be low yielding. C–N coupling using silver benzoate additives with CuI catalysts and 4,7-dimethoxy-1,10-phenanthroline… Click to show full abstract
In the literature, C–N coupling methods for the reaction of iodo-oxazole with 2-pyridinone were found to be low yielding. C–N coupling using silver benzoate additives with CuI catalysts and 4,7-dimethoxy-1,10-phenanthroline ligands has been developed to afford synthetically useful yields of the desired heterobicycle product. The reaction conditions are applied to the coupling of a range of iodo-heterocycles with 2-pyridinone. The coupling of a variety of NH-containing heterocycles with 4-iodo-oxazole is also demonstrated. The use of 2-, 4-, or 5-iodo-oxazole allows for the coupling of pyridinone to each oxazole position.
Journal Title: ACS Omega
Year Published: 2021
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