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Benzoheterazole dendrimers with triazole bridges and bisphenol A/benzophenone core units have been successfully synthesized by click chemistry. Higher generation dendrimers exhibit better antioxidant and anticancer activities than the lower generation dendrimers.

In this article, we report star-like stilbene and cyanostilbene molecules exhibiting strong fluorescence, ICT and AIE properties. Star cyanostilbene was found to be an excellent fluorophore for bio-imaging application.

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An efficient and regioselective synthesis of triazole bridged pyrrolidine grafted macrocycle derivatives was accomplished by O‐alkylation, followed by aldol/Wittig reaction, click reaction with salicylaldehyde and finally by intramolecular 1, 3‐dipolar cycloaddition (1,3‐DC) to with azomethin ylide. The regio‐ and stereochemical outcome of the reaction was unambiguously established by single crystal X‐ray analysis of the cycloadducts. All the synthesized macrocycles exhibit irreversible oxidation reduction signals in cyclic voltammetry. Antioxidant property and antibacterial activity against Bacillus cereus and Klebsiella pneumoniae bacteria and anticancer activity against human adenocarcinoma breast cancer cell line cells (MCF‐7) revealed that all the pyrrolidine grafted macrocycles showed activity comparable to that of the standard drug.