Synthesis and antimicrobial activities of 2-substituted 12H-chromeno3, 2-e1, 2, 4triazolo1, 5-cpyrimidines, 3-ethoxycarbonyl-12H-chromeno3, 2-e1, 2, 4triazolo1, 5-c pyrimidine-2-one and ethyl 2-formylamino- and 2-acetylamino-4H-chromene-3-carboxylates

摘要

Preparation of 2-substituted 9-(diethylamino)-12-(4-chlorophenyl)-12H-chromeno3,2-e1,2,4triazolo1,5-cpyrimidines is reported. Furthermore, 3-benzylideneamino-5-(4-chlorophenyl)-8-(diethylamino)-4-imino-3,4-dihydro-5H-chromeno2,3-dpyrimidine, 3-ethoxycarbonyl-12H-chromeno3,2-e1,2,4triazolo1,5-cpyrimidine-2-one, ethyl 2-formylamino- and 2-acetylamino-4H-chromene-3-carboxylates were prepared. Structures of these compounds were established on the basis of IR, UV, 1H NMR, 13C NMR and MS data. The new compounds were evaluated for antimicrobial activities.