Coumarins are naturally occurring molecules with a versatile range of activities. Their
structural and physicochemical characteristics make them a privileged scaffold in medicinal …

After the appearance of the green chemistry concept, which was introduced in the chemistry
vocabulary in the early 1990s, its main statements have been continuously developed and …

In this work, two chlorophenols with particular toxicities were transformed into their 14
corresponding coumarins (CMs). Their chemical structures were confirmed by examining the …

A highly stable and efficient heterogeneous catalyst was successfully prepared by
hydrothermal reaction of Zinc nitrate with citric acid. To produce a novel Zn‐based MOF …

Herein we report a cascaded chalcogenation of aryl alkynoates or N-arylpropynamides
using 9-mesityl-10-methylacridinium perchlorate as a visible light photocatalyst to obtain …

Functionalized coumarins are privileged scaffolds which display diverse pharmacological
and physiological activities, and a myriad of applications in medical science and biomedical …

A green protocol has been developed for the synthesis of simple coumarins and linear
pyrano [2, 3-f] and [3, 2-f] indoles by the reaction of phenol derivatives with β-ketoesters …

Given the importance of the highly reactive nature and attractiveness of coumarins as a
precursor of natural products and pharmacological agents, tremendous efforts have been …

Multicomponent reactions, conducted in a domino, sequential or consecutive fashion, have
not only considerably enhanced synthetic efficiency as one-pot methodology, but they have …

In a chlorinative cyclization, Mes-Acr-MeClO4 acted as a visible-light photocatalyst to obtain
3-chlorocoumarins from aryl alkynoates and N-chlorosuccinimide (NCS). The radical …