Organocatalyst Mediated One Pot Synthesis of 4H-furo[3,4-b]pyran, 4Hbenzo[ g]chromene and 1H-benzo[b]xanthene Derivatives in Aqueous Medium: A Green Approach
ZnO nanoparticles as a worthwhile and recyclable catalyst have been used for the one-pot synthesis of 1,8-dioxo-decahydroacridines and 1,8-dioxooctahydro-xanthenes via multi-component reactions under solvent-free conditions. The presented method is mild, environmentally friendly, inexpensive and highly effective to give the products in good to excellent yields.