Knorr Pyrrole Synthesis

Schematic representation of the Knorr Pyrrole Synthesis.
Mechanism of the Knorr Pyrrole Synthesis
Mechanism of the Knorr Pyrrole Synthesis
Original publication
Ber. Dtsch. Chem. Ges.. 1884, 17, 1635. Liebigs Ann.. 1886, 236, 290. Ber. Dtsch. Chem. Ges.. 1902, 35, 2998.
Review
Sample reactions
info
intermediate structure
NaNO2, Zn
AcOH, H2O
4 to 100 °C, 5.5 h, 57-61%
intermediate structure