In recent years, organocatalysis has enhanced its importance as a tool for the synthesis of
enantiomerically enriched compounds. Among the candidates for organocatalysis, the …

Recent years have witnessed an explosive growth in the field of amino organocatalysis,
especially in asymmetric enamine and iminium catalysis. Except for the obvious interaction …

The synthesis of spiro compounds via a Michael–Michael-aldol reaction is reported. The
reaction affords spirooxindole derivatives in good yields and in almost diastereo-and …

A newly developed cinchonidine-derived phosphoramide 6b, simple and easily available,
was identified as a powerful catalyst for the highly enantioselective Michael addition of both …

Post-synthesis modification of SBA-15 has been carried out to design highly ordered acid
functionalized hybrid mesoporous organosilica, AFS-1. This material has been used as an …

An efficient approach for the design of chiral quaternary phosphonium bromides as chiral
phase-transfer catalysts was demonstrated. A catalyst library of phosphonium salts with …

A new type of phosphonium phase‐transfer catalyst prepared from easily available chiral
amino acids was evaluated in a model reaction between oxindole and methyl vinyl ketone …

Highly organocatalytic asymmetric Michael– ketone aldol–dehydration domino reaction:
straightforward approach to construct six-membered spirocyclic ox ... - Chemical …

The present study reports an asymmetric organocatalytic cascade reaction of oxindole
derivates with α, β-unsaturated aldehydes efficiently catalyzed by simple chiral secondary …

An organocatalytic asymmetric Michael addition reaction of 3-substituted oxindoles to
protected 2-amino-1-nitroethenes has been developed. The reaction is catalyzed by a …