A novel carbon dioxide-mediated synthesis of diverse pyrroles using 2,5- dimethoxytetrahydrofuran and primary amines has been achieved in excellent yield. Despite the importance of pyrroles, no study has been performed using carbon dioxide as a reagent to accomplish Paal-Knorr reaction.
Yadav, R. N., & Banik, B. K. (2017). CARBON DIOXIDE-MEDIATED SYNTHESIS OF PYRROLES IN WATER. Heterocyclic Letters, 7(3), 905–906.