Microwave assisted synthesis and pharmacological evaluation of some potent naphtho and benzofuro thiazolyl, oxazolyl, thio and oxadiazalyl derivatives

The substituted 2-acetyl benzofurans on bromination gave substituted 2-(2-bromoacetyl) benzofurans 2a-f. These on reaction with thiourea, urea, thiosemicarbazide and semicarbazide in presence of sodium acetate under microwave irradiation resulted 3a-f, 4a-f, 5a-f and 6a-f respectively. The structures of newly synthesised compounds have been established by elemental analysis, spectral data and screened for antimicrobial, anthelmintic, antiinflammatory and analgesic activities.