A new type of catalytic stereoselective cascade pseudo four-component reaction was
discovered. The simple and facile pseudo four-component reaction of isatins, cyclic ketones …

A practical, simple, and efficient method for the synthesis of pyrano-fused spirooxindoles via
an organocatalytic three-component reaction of isatins, malononitrile, and dialkyl …

In the presence of cinchona‐thiourea organocatalyst C1, the developed organocatalytic
three‐component cascade reaction of isatins, malononitrile, and 2‐hydroxynaphthalene‐1, 4 …

Enantioselective synthesis of 3,3′-dihydropyrryl-spirooxindoles via an organocatalytic
three-component reaction - Organic & Biomolecular Chemistry (RSC Publishing) DOI:10.1039/C2OB25629K …

ABSTRACT A catalyst-free, one-pot synthesis of bis-spirooxindoles has been carried out by
a three-component reaction of bis-isatins, malononitrile, and various cyclic enolizable …

Multicomponent reaction involving isatin (1), malononitrile (2), and dimedone (3), in the
presence of triphenylphosphine as an efficient catalyst in the eco-friendly solvent ethanol …

Tetrabutylammonium‐bromide promoted, ytterbium triflate catalyzed one‐pot domino
synthesis of spirooxindoles is described. The hydration‐condensation of alkyne, 1 aldehyde …

spirooxindoles are important synthetic target compounds and play special role in organic
chemistry because of their extensive biological activities and applications of pharmaceutical …

The Lewis acid-catalyzed, three-component reaction of isatin and two 1, 3-dicarbonyl
compounds is reported. Reactions proceed with high efficiency under mild reaction …

A facile synthetic protocol for the preparation of spiro diheterocycles from easily available
2′-aminoacetophenones, isocyanates and 1, 4-benzoquinones or quinone monoimines …