Polystyrene-supported p-toluenesulfonic acid (PS/PTSA): as a highly active and reusable heterogeneous bronsted acid catalyst for the synthesis of novel 1H-indol-3-yl-4H-chromene-3-carbonitriles under neat conditions
Keywords: شرایط عجیب و غریب; 1H-Indol-3-yl-4H-chromene-3-carbonitriles; Polystyrene-supported p-toluenesulfonic acid (PS/PTSA); 3-(1H-Indol-3-yl)-3-oxopropanenitrile; Neat conditions;