Iron‐Catalyzed Tandem Nitration/Dearomatization of Biaryl Ynones With Co(NO3)2.6H2O for the Synthesis of Nitrated Spiro[5.5]trienones
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D Xia, L Zhang, X Bao, Y Li…
Asian Journal of Organic …, 2026
Wiley Online Library
ABSTRACT A new FeSO4‐catalyzed cascade nitration/cyclization and 6‐exo‐trig dearomatization reaction of biaryl ynones was developed. A variety of nitrated spiro [5.5] trienones were prepared in good yields using cheap and readily available Co (NO3) 2.6 H2O as nitration reagent.
