Poly(4-vinylpyridinum) trinitromethanide: a useful and efficient heterogeneous catalyst for the synthesis of 2,3-dihydroquinazolin-4(1H)-one derivatives under green conditions. - Nasirmahale, Leyla Nazemi; Shirini, Farhad; Jolodar, Omid Goli (Research on Chemical Intermediates, 2023)