A palladium-catalyzed dual functionalization of unactivated alkenes with trifluoroacetimidoyl chlorides toward the synthesis of structurally diverse trifluoromethyl-containing indoles and indolines has been developed.
Activated carbon fibers, known for their unique physical and chemical properties, are increasingly utilized in diverse industries, including textiles and fabrics, and can serve as ideal supports of heterogeneous palladium catalysts.
Recent advances in the preparation of trifluoromethyl-containing heterocyclics via trifluoromethyl building block strategies over the period from 2019 to the present are systematically summarized and discussed.
We developed a palladium-catalyzed four-component carbonylative cyclization of alkenyl-tethered aryl iodides, trifluoroacetimidoyl chlorides and propargyl amines for the construction of carbonyl-bridged bisheterocycles.
A mild glycosylation system was developed using glycosyl imidate donors and a charge-enhanced thiourea H-bond donor catalyst. The method can be used for the effective synthesis of O-, C-, S- and N-glycosides and chemoselective one-pot glycosylation.