Name: Palladium(II) acetate. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Palladium(II) acetate, is researched, Molecular C4H6O4Pd, CAS is 3375-31-3, about Pd-Catalyzed direct C-H arylation of pyrrolo[1,2-a]quinoxalines. Author is Hao, Di; Yang, Zhen; Liu, Yali; Li, Yang; Li, Chuntian; Gu, Yanlong; Vaccaro, Luigi; Liu, Jichang; Liu, Ping.
An efficient Pd-catalyzed direct C-H arylation of pyrrolo[1,2-a]quinoxalines with aryl iodides was described, providing a selective route toward a series of 1-arylated and 1,3-diarylated pyrrolo[1,2-a]quinoxalines I [R = Ph, 4-MeC6H4, 4-FC6H4, 4-MeOC6H4; R1 = H, Me, F; R2 = H, Cl; Ar = Ph, 4-MeC6H4, 3-MeOC6H4, etc.; Ar1 = 4-MeC6H4, 4-BrC6H4, 2-naphthyl, etc.] in good yields. This method features a broad substrate scope, good functional group tolerance and gram-scale synthesis. Furthermore, the C3-thiocyanation of the arylated product was also achieved. These novel aryl-substituted pyrrolo [1,2-a]quinoxalines will have a variety of applications in organic synthesis and medicinal chem.
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