Comparing with the well-known five-and six-membered nitrogen-containing heterocyclic compounds,the seven-(azepine)and eight-membered(azocine)as well as larger N-containing Heterocyclic systems occupy
Covalent organic frameworks(COFs),due to its high stability,large surface areas,good molecular tenability and excellent optical properties,has become a promising heterogenous photocatalyst for visible
The legendary of Sternbach orchestrates an era of benzodiazepine heterocycles in the history of drug development.In the last five decades,benzodiazepine(1)has been evolved as a privileged platform in
The tetrahydrocarbazole architecture is a privileged heterocyclic ring system.It not only widely exists in various naturally occurring alkaloids and pharmacologically active compounds,but also is feat
As a direct strategy for the formation of nine-membered rings from readily available building blocks,cycloaddition reactions have attracted much attention in recent years.N-vinyl-α,β-unsaturated nitro
α-Alkoxy phosphonium salts have been used as the Wittig reagents for the synthesis of enol ethers.1 These salts are usually prepared by reactions of triphenyl-or trialkylphosphine with α–halo ethers2
Biothiols such as cysteine(Cys),homocysteine(Hcy)and glutathione(GSH)play vital roles in a wide range of physiological and pathological processes arising from their biological redox chemistry.
The indeno-coumarins exhibit good medicinal value1 and photochromic properties2 which widely exist in natural products and bioactive substances.Up to now,only Pechmann condensation between indan-1-one
Pyrimidin-2(1H)-ones as one of important organic compounds could be found in nature products,pharmaceutical intermediates and chemical building blocks.1 Up to now,the two-step synthetic method combini