1-Methylpiperazine → HCID 10468939, compound

Participants

Reaction Steps

By reaction of 4-chloro-1-methylimidazo[1,2-a]quinoxaline (example 2) with N-methylpiperazine, according to a procedure that is similar to that followed in example 3, there is obtained 1-methyl-4(N'-methylpiperazinyl)imidazo[1,2-a]quinoxaline. m.p. (DSC)=108.0° C.(onset); IR (KBr): 2928, 1535, 1510 cm-1 ; 1H-NMR (CDCl3): δ8.1 (1H,dd), 7.7 (1H,dd), 7.4÷7.0 (3H,m), 4.35 (4H,t), 2.85 (3H,s), 2.6 (4H,t), 2.3 (3H,s); UV (EtOH): λmax =228, 248, 279, 309, 325 nm. Elementary analysis for C16H19N5 (m.w. 281.36): calcd. C 68.30, H 6.81, N 24.89%; found C 68.37, H 7.15, N 25.05%.

Provenance & Evidence