p‐Toluene Sulphonic Acid (PTSA): An Efficient Catalyst for One‐Pot Three‐Component Synthesis of Novel 3‐Pyrazolyl‐Thiazolidin‐4‐One Derivatives. - Das, Sharmistha; Paul, Subhankar; Mitra, Bijeta; Chandra Pariyar, Gyan; Ghosh, Pranab (ChemistrySelect, 2024)