Isatins (1H-indole-2, 3-dione) are synthetically versatile substrates, where they can be used
for the synthesis of a large variety of heterocyclic compounds, such as indoles and …

The chemistry of superacids has developed in the last two decades into a field of growing
interest and importance. Now available in a new expanded second edition, this definitive …

Whilst there are a large number of CC bond forming reactions available for the construction
of heterocycles a number of these protocols require the use of stoichiometric organometallic …

Ion-solvating membranes (ISMs) are an alternative to proton-exchange and anion-exchange
membranes for use in water electrolysers. ISMs do not have fixed ionic groups in their …

Herein, a mild metal-free and efficacious route for the synthesis of biologically important 3-
aryl oxindole derivatives is described. Using Lambert salt-initiated hydroarylation of isatin, a …

A simple and highly efficient method has been developed for the synthesis of 3, 3-diindolyl
oxyindoles by the reaction of indoles with isatin or 5-fluoro isatin using a catalytic amount …

A novel microporous anion exchange membrane containing a spirobiindane segment and
cardo moiety is successfully synthesized through superacid-catalyzed Friedel–Crafts-type …

Substituted 3-hydroxy-2-oxindoles are important core structures found in many natural
products [1] and pharmaceutical lead compounds.[2] Despite the prevalence of bioactive …

Unique and challenging molecular motifs within secondary metabolites have long presented
synthetic chemists with golden opportunities for discovery, whether simply as a source of …

Ceric ammonium nitrate efficiently catalyzes the reaction of isatin with indoles under sonic
waves to afford symmetrical 3, 3-di (indolyl) indolin-2-ones in excellent yields, as well as the …