Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 88, Issue 11, Pages 6973-6986Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.3c00270
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The one-pot de novo synthesis of pentasubstituted pyridines is achieved through Au-(I)-autotandem catalysis and subsequent aromatization. This process involves aza-enyne metathesis with aryl propiolates to yield 1-azabutadienes and their addition/6 pi-electrocyclization sequence with the other propiolate units. The resulting 1,4-dihydropyridines are aromatized to produce pyridines in the presence of atmospheric oxygen. The aryl propiolates are regioselectively incorporated into the ring system, leading to the formation of 2-arylpyridines as the sole product.
The one-pot de novo synthesis of pentasubstituted pyridineswasrealized following the process of Au-(I)-autotandem catalysis and subsequentaromatization. The process involves aza-enyne metathesis witharyl propiolates to yield 1-azabutadienes and their addition/6 pi-electrocyclizationsequence with the other propiolate units. The resultant 1,4-dihydropyridineswere aromatized to furnish the pyridines in the presence of atmosphericoxygen. The aryl propiolates were regioselectively incorporated intothe ring system to afford 2-arylpyridines as the sole product.
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