Microwave-assisted synthesis of new pyrimido4′,5′:4,5thiazolo3,2-abenzimidazol-4(3H)-one derivatives in solvent-free condition

摘要

Microwave-assisted synthesis of new 2-arylpyrimido[4′,5′:4,5]thiazolo[3,2-α]benzimidazol-4(3H)-ones from 3-aminothia- zolo[3,2-α]benzimidazol-2-carboxamide and aroyl halides in solvent-free condition is described.In comparison with classical conditions the reactions are faster and the yields are higher under microwave irradiation.