As a readily available and benign waste product of the petrochemical industry, elemental
sulfur displays desirable characteristics as a raw material for new processes. Accordingly …

The oxidative amination of alkynes typically requires transition metal catalysts and strong
oxidants. Herein, we alternatively utilize DABCO as a sulfur-activating catalyst to achieve the …

The synthesis of thioether derivatives has been explored widely due to the potential
application of these derivatives in medicinal chemistry, pharmaceutical industry and material …

In this work, a series of novel 3-amino-4 H-thieno [3, 2-c] coumarins were designed and
synthesized by a one-pot, catalyst-free, and three-component reaction of 3-acetylcoumarins …

Sulfur-Promoted Oxidative Condensation of Chalcones with Unsubstituted Cyanoacetamide in
DMSO: Access to 3-Cyanopyrid-2-ones | The Journal of Organic Chemistry ACS ACS …

We disclose the synthesis of 3-arylquinoxalin-2-ones from o-phenylenediamines and readily
available arylacetates. The method harnesses the selective oxidative property of elemental …

In this work, an efficient sulfur-and DABCO-promoted reaction for the synthesis of
aminoalkylidene rhodanines from available alkylidene rhodanines and isothiocyanates is …

Seventeen 3-alkylaminoquinoxaline-2 (1 H)-thiones and 3-alkyloxyquinoxaline-2 (1 H)-
thiones were prepared by a novel thionation protocol from the readily available quinoxaline …

Inexpensive sodium sulfide trihydrate was found to promote unprecedented 6e-regio-
predefined redox condensation of o-nitroanilines with α-tetralones to benzo [a] phenazines …

Significance: Quinoxalines represent a privileged group of nitrogen-containing heterocycles
and have found wide use in medicinal chemistry and material science. An interesting subset …