反应详情

By reaction of 4-chloroimidazo[1,2-a]quinoxaline (example 1) with cyclopentylamine according to a procedure that is similar to that followed in example 3 there is obtained 4-cyclopentylaminoimidazo[1,2-a] quinoxaline. m.p. (DSC)=114.3° C. (onset); IR (KBr): 3419, 2962, 1543 cm-1 ; 1H-NMR (CDCl3):δ7.9 (1H,s), 7.8÷7.0 (5H,m), 6.2 (1H,d), 4.7 (1H, m), 2.3÷2.05 (4H,m), 2.0÷1.3 (4H,m); UV (EtOH): δmax =228, 244, 285, 297, 319, 333 nm.