Abstract
In this study, an efficacious method is described for the synthesis of spirooxindole derivatives using Fe3O4/g-C3N4 as a green catalyst. This is a one-pot three-component condensation in water as a clean and environmentally favorable media. The present procedure proposes various remarkable privileges such as mild reaction conditions, simple work-up procedure and environment friendly. Moreover, the catalyst used is easily recovered by the external magnetic field and reused without significant deterioration in catalytic activity after at least six times.
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