Give any two methods of preparations of pyrrole. Also write the reactions involved

Two common methods for the preparation of pyrrole are the Knorr synthesis and the Paal-Knorr synthesis.

1. Knorr Synthesis: The Knorr synthesis involves the condensation of a 1,4-diketone or a 1,4-ketoaldehyde with an excess of an amine, usually ammonia or a primary amine, ______ _____ ________ _________ ________ ____.
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