Catalysis

Catalysis plays an essential role in the synthesis of organic compounds, fully aligning with the ninth principle of sustainable chemistry. In recent years, nanomaterials have emerged as promising catalysts, offering stability, recyclability, and high efficiency. Among the most widely used catalysts in organic synthesis are those derived from palladium (Pd), a highly effective but costly and scarce metal.

The efficient design and synthesis of emitters for organic light-emitting diodes (OLEDs) is a critical area of research, driven by the demand for cost-effective, sustainable, and high-performance blue emitters. This study presents the design and synthesis of 3,3’-bicarbazole-triazine derivatives as potential thermally activated delayed fluorescence (TADF) emitters. Using computational modeling, donor-acceptor (D-A) structures were rationally designed to exhibit blue emission and low singlet-triplet energy gaps.

Sulfonamides represent an important family of compounds with diverse biological activities, especially recognized as antibiotics. 1,2,4-Benzothiadicines-1,1-dioxide belong to a family of cyclic sulfonamides with significant pharmacological applications, such as antimicrobial, antiviral and antidiabetic. In addition, they are used clinically as diuretics and antihypertensives.

Graphitic carbon nitride is a semiconducting material of a graphite-like 2D layered structure. It is well known for its photocatalytic properties, which can be exploited for solar-light-driven water splitting and degradation of organic pollutants. Here, we report its capabilities of catalyzing the reduction of the azo bond by hydrazine to two amines under visible light. This photocatalytic reaction provides a novel, appealing way to reduce azo dye wastes as pollutants other than degradation.

Heterocyclic ring systems are essential in drug design, serving as core structures in many approved drugs. Nitrogen- and oxygen-containing heterocycles, in particular, have become increasingly significant in recent years. Despite the availability of efficient synthetic methods, there is an ongoing need for new approaches that offer higher molecular complexity, better functional group compatibility, and atom economy, using readily available starting materials under mild conditions.