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8154544 
Journal Article 
Sodium perchlorate catalysed synthesis of Hantzsch 1,4-dihydropyridine derivatives under mild conditions 
Makone, SS; Vyawahare, DB 
2013 
International Journal of ChemTech Research
ISSN: 0974-4290 
1550-1554 
English 
Sodium perchlorate catalysed synthesis of Hantzsch 1,4-dihydropyridine derivatives using aldehydes, methyl acetoacetate and ammonium acetate in an aqueous media at room temperature is described. This method offers several advantages including high yields, an environmentally friendly procedure, mild reaction conditions and economic viability. 
1,4-dihydropyridines; Ammonium acetate; Methyl acetoacetate; Sodium perchlorate