SEARCH Articles Figures Tables Continuous Paal—Knorr pyrrole synthesis Conventional Knorr pyrrole synthesis Heterocycle synthesis Knorr pyrrole Heterocycle synthesis Paal-Knorr pyrrole Knorr Pyrrole synthesis Conditions Knorr pyrrole syntheses Acylation Knorr pyrrole synthesis Knorr pyrrole synthesis Knoevenagel reaction Knorr pyrrole synthesis Mechanism Knorr pyrrole synthesis modified Knorr synthesis of pyrroles Knorr’s pyrrole Knorr’s pyrrole synthesis PAAL KNORR Pyrrole synthesis Paal-Knorr Pyrrole synthesis Mechanism Paal-Knorr synthesis of pyrroles Pyrrole Knorr reaction Pyrroles, Paal-Knorr synthesis Retro-aldol type cleavage of pyrroles in Knorr’s synthesis