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This review gives an overview of the advances in the use of isatin in the synthesis of various heterocyclic compounds via 1,3-dipolar cycloaddition reactions during the period from 2000 to 2011.

An engineered hydrogenated urchin-like yolk@shell TiO2 structure decorated with Au/Pd nanoparticles was designed via sequential steps and employed in visible light photocatalytic Suzuki coupling.

Indoles are some of the most versatile and common nitrogen-based heterocyclic scaffolds and are frequently used in the synthesis of various organic compounds. Indole based compounds are very important among heterocyclic structures due to their biological and pharmaceutical activities. The last decade, in particular, has witnessed considerable activity towards the synthesis of indole derivatives due to the possibilities for the design of polycyclic structures by the incorporation of multiple fused heterocyclic scaffolds in an attempt to achieve promising new heterocycles with chemical and biomedical relevance. In this study, we provide an overview on recent applications of indole in the multicomponent reactions for the synthesis of various heterocyclic compounds during the period of 2012 to 2017.

Controlled drug-delivery systems (DDSs) are one of the ideal methods for human health care in which the drug is released with a constant rate and its concentration in blood remains always steady. Pure and modified SBA-15, with a hexagonal structure and nano size pores has apiary-like structure, have attracted much attention as carriers in academic researches for delivery of natural and chemical drugs. In this review, preparation, characterization and application of various types of SBA-15 as drug delivers is investigated.

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