The author of 《Copper (0)/Selectfluor system-catalyzed tandem annulation/aromatization of o-aryl benzenesulfonylimides: facile synthesis of 6H-phenanthridines》 were Zheng, Limeng; Shi, Dongdong; Bao, Hanyang; Lin, Yunkun. And the article was published in Youji Huaxue in 2019. Application In Synthesis of 2-Bromonicotinaldehyde The author mentioned the following in the article:
A facile and efficient method for the synthesis of 6H-phenanthridines I (R = H, F; R1 = H, Cl, F, Br, Me; R2 = H, Me, Cl, F; R3 = H, Cl; R4 = H, Me, i-Pr, Ph, etc.; R3R4 = -CH=CH-CH=CH-) has been successfully developed involving a copper (0)/Selectfluor system-catalyzed tandem annulation/aromatization of o-aryl benzenesulfonylimides 2-(3-R3-4-R4C6H3)-4-R1-5-R2-6-RC6HCH=NSO2Ph. A variety of substituted 6H-phenanthridines I was synthesized in moderate to good yields under mild reaction conditions. Mechanistic experiments revealed that the reaction might involve an oxycupration of C=N bond followed by an intramol. C-H bond amination as the key steps triggered by an in situ generated copper species XCuOH (X = F or BF4) from the Cu (0)/Selectfluor system. In the experimental materials used by the author, we found 2-Bromonicotinaldehyde(cas: 128071-75-0Application In Synthesis of 2-Bromonicotinaldehyde)
2-Bromonicotinaldehyde(cas: 128071-75-0) belongs to pyridine. Pyridine derivatives lend themselves to many roles in the spirited field of supramolecular chemistry – whether as the ligand backbone of metal-organic polymers or presiding over the key electronic stations of nanodevices. In biochemistry, pyridine-containing cofactors are necessary nutrients on which our lives depend. Application In Synthesis of 2-Bromonicotinaldehyde