Bromination of arenes is an important chemical transformation because the resulting products often serve as the electrophilic coupling partner for the cross-coupling reactions to synthesize various cl
Asymmetric hydrogenation with transition-metal complexed bearing chiral ligands is a powerful approach to synthesize chiral substances from unsaturated starting materials,and thus the design and devel
Oxindole and pyrazolone scaffolds represent privileged heterocyclic structures and pharmacophores found in a variety of biologically active natural products and medicinal agents.
The spiro[pyrrolidine-oxindole] ring system,which features a spiro union of a pyrrolidine ring to the C3 position of an oxindole frame,represents an important class of structural motif found in a dive
Molecular oxygen,especially air,is an ideal oxidant for various organic reaction due to its inexpensive,readily available and environment-friendly character,thus many organic chemists have been fascin
The trifluoromethyl derivatives are widely used in agrochemicals,pharmaceuticals and materials,[1-4] since incorporation of trifluoromethyl groups into the organic molecules brings remarkable changes