反应详情

Following the general procedure of Example 11 and making noncritical variations, 6-chloro-2-(chloromethyl)imidazo[1,2-a]pyridine (Example 4, Step 1; 0.354 g), 1-(3-chlorophenyl)piperazine dihydrochloride (Aldrich; 0.475 g), triethylamine (0.552 g), and ethylene glycol (2 mL) give 0.372 g of the title compound after chromatography (silica gel, methanol/dichloromethane, 4/96) and crystallization from dichloromethane/hexane; mp 148-149° C.; MS m/z 360; IR (mineral oil) 1594, 1340, 1073, 1218, 1502 cm-1. 1H NMR (CDCl3) δ2.71, 3.23, 3.76, 6.79, 6.86, 7.14, 7.52, 7.53, 8.14.