Synthesis of β-enamino malonates through caesium carbonate-promoted reaction of nitro-substituted donor-acceptor cyclopropanes.

A caesium carbonate-promoted reaction of nitro-substituted donor-acceptor cyclopropanes (DACs) with primary aromatic amines in water provides a convenient access to β-enamino malonates under mild reaction conditions. The transformation takes place through the formation of allene intermediates from the DACs followed by the conjugate addition of various primary aromatic amines to the intermediates. The reaction proceeds more efficiently in water as compared with organic solvents and the products were isolated in good yields by filtering through a silica gel column without any prior extraction procedure.

Fabrication of MnSnO intercalated TA-rGO modified sensor for selective electrochemical detection of chloramphenicol in real samples.

Chloramphenicol (CAP), a potent antibiotic capable of inhibiting protein synthesis, presents significant challenges related to long-term dosing and its persistent leaching into the environment, raising concerns about environmental contamination and resistance development. To address this issue, we developed a reliable, low-cost, and biocompatible nanocomposite material comprising tannic acid (TA)-reduced graphene oxide (rGO) intercalated into manganese-doped tin oxide nanoparticles (MnSnO₂ NPs). The structural formation and catalytic activity of the MnSnO₂ NPs/TA-rGO nanocomposite were characterized using field emission-scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HR-TEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and electrochemical techniques.

The Study to Assess the Effectiveness of Cissus Quadrangularis among Postmenopausal Women with Osteopenia.

Background: Osteopenia refers to bone density that is not only normal but also not as low as that noted in osteoporosis. Osteopenia leads to osteoporosis and increases the risk of fractures. Current research is focused on agents that will prevent or slow the progression of bone loss.

Characterising the Metabolomic Diversity and Biological Potentials of Extracts from Different Parts of Two Species Using UHPLC-MS/MS and In Vitro Techniques.

This study investigates the biochemical composition and biological properties of different parts (leaves, roots, and twigs) of two species ( and ). The extracts were analysed using UHPLC-MS/MS to determine their chemical profiling. A range of antioxidant assays were performed to evaluate the extract's antioxidant capabilities.