TITLE:
Nano Nickel-Cobalt Ferrite Catalysed One-Pot Multi-Component Synthesis of Xanthenediones and Acridinediones
AUTHORS:
Srividhya Maripi, Raghu Babu Korupolu, Suri Babu Madasu
KEYWORDS:
1, 8-Dioxo-Octahydroxanthenes, 1, 8-Dioxohexahydroacridines, Nano Nickel Cobalt Ferrite Catalyst and Recyclable Catalyst
JOURNAL NAME:
Green and Sustainable Chemistry,
Vol.7 No.1,
February
28,
2017
ABSTRACT: 1,8-Dioxo-octahydroxanthenes (4a-4f)
and 1,8-dioxohexahydroacridines (5a-5c) were synthesized by novel, simple and eco-friendly method with higher yields in the presence
of magnetically separable nano nickel-cobalt ferrite catalyst (Ni0.5Co0.5Fe2O4).
The former, 1,8-dioxo-octahydroxanthenes have been synthesized from dimedone and different aromatic aldehydes,
while the latter from this mixture are along with ammonium
acetate. The main advantage of this method is that the nano catalyst can be
reused up to five reaction cycles without losing the catalytic activity.