Liang, Dong-Dong; Guo, Shen-Yi; Tong, Shuo; Wang, Mei-Xiang published an article about the compound: 6-Fluoronicotinonitrile( cas:3939-12-6,SMILESS:N#CC1=CC=C(F)N=C1 ).Reference of 6-Fluoronicotinonitrile. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:3939-12-6) through the article.
A practical synthetic method has been developed for polyfunctionalized biaryls e.g., I, e.g., II based on a facile one-pot nucleophilic aromatic substitution (SNAr) reaction and [5,5]- or [3,3]-sigmatropic rearrangement reaction cascade. Under mild basic conditions, N-arylhydroxylamines ArN(R)OH (R = Bn, Me, Boc; Ar = Ph, 6-fluoropyridin-2-yl, 3,5-dichlorophenyl, etc.) reacted with o-activated fluoro (het)arenes R1F (R1 = 2-nitrophenyl, 6-fluoropyridin-2-yl, 4-cyanophenyl, etc.) to form N,O-diarylhydroxylamine intermediates which underwent spontaneously selective [5,5]-sigmatropic rearrangement reaction to produce diverse functionalized 4-amino-4′-hydroxy-1,1′-biaryls e.g., I. A sequential SNAr reaction and [3,3]-sigmatropic rearrangement took place between N-arylhydroxylamines and 2-fluoropyridine derivatives or 4-fluorobenzonitrile to afford functionalized 2-amino-2′-hydroxy-1,1′-biaryls e.g., II. As invaluable and unique building blocks, the resulting biaryls were applied in the straightforward synthesis of N2, O2-coronarene, carbazole, aza- and diaza carbazole derivatives e.g, III.
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Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem