Carbon dioxide-mediated new reaction of 2,5-hexanedione and primary amino compounds in water-THF produced N-substituted pyrroles in excellent yield. This method for the preparation of pyrroles is novel, simple, and efficient.
Yadav, Ram Naresh and Banik, Bimal K., "CARBON DIOXIDE-MEDIATED PREPARATION OF PYRROLES IN WATER FOLLOWING PAAL KNORR METHOD" (2017). Chemistry Faculty Publications and Presentations. 94.