An effective method for the synthesis of 2,3-dihydroquinazolin-4(1h)-ones using conducting polymer salts as catalyst

Conjugate polymer salts, polyaniline (PANI), polypyrrole (PPY) and poly (3, 4-ethylenedioxythiophene) (PEDOT), served as solid acid catalysts for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones under mild conditions. Use of the polypyrrole and poly (3, 4- ethylenedioxythiophene) salts as solid acid catalyst is being reported for the first time. The reactions proceed in moderate to excellent yields in the presence of catalysts. The catalytic system could be efficiently recycled and reused.