The author of 《New compounds obtained by direct condensation of 2-halopyridines with benzo-1,2,3-triazole》 were Nantka-Namirski, Pawel; Kalinowski, Jerzy. And the article was published in Acta Poloniae Pharmaceutica in 1974. SDS of cas: 54453-94-0 The author mentioned the following in the article:
1-(2-Pyridyl)-1,2,3-benzotriazoles I (R = H, Me; R1 = H, NO2, CN, CO2H, CO2Et; R2 = H, Et, Me, NO2, NH2, CN, CO2H, CO2Et; R3 = H, NO2) were prepared in 33-84% yield by fusing 1,2,3-benzotriazole with the appropriately substituted 2-chloroor 2-bromopyridine at 140-80°. II and III were isolated as byproducts in the preparation of I (R = R1 = R3 = H, R2 = NO2). A detailed discussion of the NMR spectra was presented. The experimental process involved the reaction of Ethyl 6-chloro-2,4-dimethylnicotinate(cas: 54453-94-0SDS of cas: 54453-94-0)
Ethyl 6-chloro-2,4-dimethylnicotinate(cas: 54453-94-0) belongs to pyridine. Pyridine, its benzo and pyridine-based compounds play diverse roles in organic chemistry. As ligands, solvents, and catalysts they facilitate reactions; thus descriptions of these new ligands and their applications abound each year.SDS of cas: 54453-94-0
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics