Dyes having coumarin core which absorbs and emits in deep-red to NIR region have
become incredibly valuable due to their essential role in biology, DSSC, NLO materials, and …

A Lewis base catalyst Trip-SMe (Trip= triptycenyl) for electrophilic aromatic halogenation
using N-halosuccinimides (NXS) is introduced. In the presence of an appropriate activator …

Electrochemical selenation in undivided electrochemical cells allows the preparation of
selenium‐containing naphthoquinones. The rapid, green and efficient protocol avoids …

Halogenation of aromatic compounds is one of the most crucial reactions in modern
synthetic chemistry. Aromatic halides are important synthetic intermediates used in metal …

For high-value-added application of osthole derivatives as a pesticide candidate in crop
protection, by the use of osthole as a lead compound, a series of novel acrylate derivatives …

A two-step synthetic method for four dibromocoumarin monomers (3, 7-dibromo-4-
methylcoumarin, 3, 6-dibromo-4-methylcoumarin, 3, 7-dibromocoumarin, and 3, 6 …

A set of 3-ethynylaryl coumarin dyes with mono, bithiophenes and the fused variant, thieno
[3, 2-b] thiophene, as well as an alkylated benzotriazole unit were prepared and tested for …

An efficient, regioselective chlorination of coumarins using Earth-abundant and cost-
effective CuCl2 under visible light irradiation is reported. A key feature of this protocol is the …

A bismuth-catalyzed methylation of quinones in the presence of tert-butyl peroxybenzoate
(TBPB) was developed via a radical reaction mechanism. Particularly, TBPB was used not …

3-Benzylmenadiones were obtained in good yield by using a blue-light-induced photoredox
process in the presence of Fe (III), oxygen, and γ-terpinene acting as a hydrogen-atom …