Research Article
Nanosphere of Semicrystalline Polyaniline Powder: An Effective, Versatile, and Reusable Catalyst for Hantzsch Reaction
Table 2
PANI-HEDP catalyzed synthesis of 1,4-dihydropyridines under solvent free condition at ambient temperaturea.
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| Ethyl acetoacetate (4 mmol), 4-chlorobenzaldehyde (2 mmol), ammonium acetate (3 mmol), and PANI-HEDP catalyst (40 mg). | ||||||||||||||||||||||||||||||||||||||||||||||||