Two new, sensitive, and selective spectrofluorometric methods were developed for the determination of gemifloxacin mesylate (GFX) in tablets and spiked human plasma. Method A was based on measurement of the enhanced fluorescence spectral behaviour of GFX in a sodium dodecyl sulphate (SDS) micellar system. In aqueous solution of acetate buffer pH 5.5, the fluorescence intensity of GFX was greatl...

Developing fluorescent paper-based materials with recyclable, environmental friendly, excellent stable and uniform performances are still an urgent challenge at present. Herein, a simple, green, high-efficiency method for the fabrication of high stability recyclable cellulose-based paper from waste bagasse via Hantzsch reaction is proposed. Compared to pristine paper, surface modification showe...

Within the realm of catalytic asymmetric hydrogenation, the focus continues to be on the use of chiral metal complexes in conjunction with a hydrogen source. Recently, the widespread development of organocatalysis, including the invention of iminium activation, has led to the discovery of many new enantioselective transformations. Based on this strategy, a number of bioinspired processes for th...

Formaldehyde is commonly used in detergents and cosmetic products as antibacterial agent and preservative. This substance is unfavorable for human health because it is known to be toxic for humans and causes irritation of eyes and skins. The toxicology studies of this compound indicate risk of detergents and cosmetic formulations with a minimum content of 0.05% free formaldehyde. Therefore, det...

Abstract A highly efficient and stable heterogeneous coordination polymer (CP) was successfully prepared by hydrothermal combination of silver 4,6-diamino-2-pyrimidinethiol. The characterized FT-IR, XRD, TGA, SEM, EDX, X-ray mapping Nitrogen adsorption–desorption analysis. Ag–CP exhibit excellent catalytic activity in multicomponent Hantzsch synthesis polyhydroquinolines under mild reaction con...

Herein, we describe the first total synthesis of trienylfuranol A, a fungal triene-substituted tetrahydrofuran metabolite. The stereoselectivity chiral center bearing trienyl side chain was diastereodivergently controlled by addition nucleophilic species on substituted ?-butyrolactone. Remarkably, C-nucleophilic or hydride onto oxocarbenium intermediate leads to opposite diastereoselectivity re...