Background:
Metal oxide or metal oxide composite nanoparticles are attaining tremendous
importance due to their catalytic activities for various organic transformations.
Objective:
To report the one-pot synthesis of xanthene derivatives prepared by ZnS-Fe2O3-Ag composite
under solvent-free conditions.
Method:
To prepare nanocomposite by a facile and simple hydrothermal approach.
Results:
The prepared composite is smaller (17.56 nm) in size and can be easily separable, recycled
and reused six times without any significant loss of catalytic activity with excellent yields. In short reaction
time, great catalytic activity was perceived with no co-catalyst and any other activator.
Conclusion:
In conclusion, ZnS-Fe2O3-Ag composite provides a simple, economical, efficient and
greener method for the synthesis of one-pot multicomponent reaction of aldehyde with 1,3-diketones
under solvent free conditions for the synthesis of 1,8-dioxooctahydro xanthenes. In short reaction
time, great catalytic activity was perceived with no co-catalyst and any other activator.
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