Reaction of 1-ethoxyalylmethylpyrido[2,3-b]pyrazinium bromide with ammonium acetate: synthesis of imidazo[1′,2′:1,2]pyrido[5,6-b]pyrazines was written by Blache, Yves;Gueiffier, Alain;Chavignon, Olivier;Elhakmaoui, Ahmed;Viols, Henry;Teulade, Jean Claude;Milhavet, Jean Claude;Dauphin, Gerard;Chapat, Jean Pierre. And the article was included in Heterocycles in 1994.Recommanded Product: Pyrido[2,3-b]pyrazine This article mentions the following:
The synthesis of some imidazo[1,2′:1,2]pyrido[5,6-b]pyrazines I (R1 = H, Me, R2 = H; R1 = R2 = Me) by treatment of quaternary salts of pyrido[2,3-b]pyrazines II (R3 = H) with ammonium acetate in AcOH media is described. In the experiment, the researchers used many compounds, for example, Pyrido[2,3-b]pyrazine (cas: 322-46-3Recommanded Product: Pyrido[2,3-b]pyrazine).
Pyrido[2,3-b]pyrazine (cas: 322-46-3) belongs to pyrazine derivatives. Pyrazinesare six-membered aromatic heterocyclic organic compounds with two nitrogen atoms at 1,4-positions. Pyrazine is a weaker base (pKb = 13.4) than pyridine (pKb = 8.8), pyrimidine (pKb = 12.7). A large number of pyrazine derivatives are known for their antitumor, antibiotic, anticonvulsant, antituberculosis, and diuretic activities.Recommanded Product: Pyrido[2,3-b]pyrazine