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 Knoevenagel reaction Knorr pyrrole synthesis Mechanism Knorr pyrrole synthesis modified Knorr pyrrole) Knorr synthesis Knorr synthesis of pyrroles Knorr’s pyrrole synthesis PAAL KNORR Pyrrole synthesis Paal-Knorr Pyrrole synthesis Mechanism Paal-Knorr synthesis of pyrroles Pyrroles, Paal-Knorr synthesis Pyrroles, synthesis Retro-aldol type cleavage of pyrroles in Knorr’s synthesis