We have developed a new type of iridium catalysts.In the presence of formic acid,the catalysts are used to highly chemoselectively and efficiently reduce al
Benzofuranones are commonly found in natural products,pharmaceuticals,antioxidants and biologically active compounds.1 We have developed a protocol for effi
δ-Hydroxy-β-ketoesters are useful building blocks for various biologically active compounds.Common methods to access δ-hydroxy-β-ketoesters rely on the
N,O-acetal compound is present in many biologically active natural products[1],and N,O-acetal compound also can be used as a synthetic material for some rea
Recently,N-vinyl nitrones have attracted much attention duo to the rich chemistry of the double bonds.Whereas,N-vinyl fluorenone nitrones have rarely been t
Chromane is one of the most privileged oxygen-containing heterocyclic core,which is widespread in many natural products and is also known as common structur
The spirooxindole system is the core structure of a wide variety of medicinal agents and natural products with broad biological activities ranging from anti