Many naturally occurring substances, traditionally used in popular medicines around the
world, contain the coumarin moiety. Coumarin represents a privileged scaffold for medicinal …

Conjugated dienes have occupied a pivotal position in the field of synthetic organic
chemistry and medicinal chemistry. They act as important synthons for the synthesis of …

A facile TBHP-mediated direct oxidative coupling of quinoxalin-2 (1H)-ones with
arylaldehydes has been developed under metal-free conditions. This method provided a …

An efficient photocatalytic decarboxylative 3-position alkylation of coumarins by using alkyl
N-hydroxyphthalimide esters as alkylation reagents has been developed. A variety of NHP …

A novel, practical and metal-free approach for the regioselective selenation of coumarins
employing (bis (trifluoroacetoxy) iodo) benzene (PIFA) at room temperature is presented …

With sunlight or blue LEDs irradiation, regioselective decarboxylative alkylation of various
non‐aromatic heterocycles has been realized via C (sp3)‐centered radical C (sp2)− C (sp3) …

We present the first example of sustainable, intuitive, highly regioselective, visible-light-
driven copper catalyzed aerobic oxidative cascade cyclization of N-tosylhydrazones with …

The ruthenium-catalyzed activation of the C4 position of coumarins for coupling with
acrylates was described using modifiable ketone as a directing group. The alkenylation …

A facile and efficient synthetic approach to various valuable 3-aryl-and 3-aroylcoumarins by
the direct arylation and aroylation of coumarins with glyoxals in a metal-free manner is …

This communication describes the development of a mild method for the cross-coupling of
the C3-position of coumarin with an array of diazonium salts mediated by chlorophyll as a …