Transition-Metal-Free C-3 Arylation of Quinoline-4-ones with Arylhydrazines

Regioselective α-arylation of coumarins and 2-pyridones with phenylhydrazines under transition-metal-free conditions

A transition-metal-free regioselective α-arylation of coumarins and 2-pyridones has been accomplished by the reaction of phenylhydrazines with coumarins or 2-pyridones.

Double heteroannulation of S,N-acetals: a facile access to quinolone derivatives

A library of 3-aryl-4-quinolones and their benzo-fused heterocycles was synthesized from single S,N-acetal precursors.

p-TsOH-promoted synthesis of (E)-6-phenyl-7-styryl-5,6-dihydrodibenzo[b,h][1,6]naphthyridines via cascade intramolecular aza-Michael addition/Friedlander condensation of 2′-aminochalcones in a SDS/H2O system

p-TsOH-promoted one-pot cascade synthesis of novel (E)-6-phenyl-7-styryl-5,6-dihydrodibenzo[b,h][1,6]naphthyridines via homodimerization of 2′-aminochalcones has been developed in a SDS/H₂O system.

Palladium-catalyzed aerobic oxidative cross-coupling of arylhydrazines with terminal alkynes

The Pd-catalyzed aerobic oxidative coupling of arylhydrazines with terminal acetylenes was achieved under copper- and base-free conditions.