Solvent Free Synthesis of N‐Substituted Pyrroles Catalyzed by Calcium Nitrate

Moderated and mild way for synthesizing N‐substituted pyrrole has been demonstrated herein. No solvents need to be used for this reaction, and instead, reactants themselves acted as a reaction medium. In fact, the reaction is carried out using catalytic amount of Ca(NO₃)₂.4H₂O. The reaction conditions are selective and mild that helped to tolerate a wide variety of functional groups to give the desired products in good chemical yields.