The oxidative degradation of (-) sclareol to sclareol oxide(3) by the Lemieux von Rudloffs reagent(KMnO 4-NaIO 4) in the presence of the phase transfer agents, benzyltriethyl ammonium chloride, or with aqueous t butanol as solvents, or supported on silica gel is described.

5% hydrogen peroxide using alkyl ammonium sulfate as phase transfer agent.

Preparation of trimethylsilyl quaternary ammonium salt phase transfer catalysts and their application in the synthesis of esterified carbon functional groups organic silicone monomers;

Synthesis and characterization of epoxy SBS in the presence of phase transfer catalyst and its use as compatibilizer;

Study on catalytic property of polymer-supported phase transfer catalyst under different stirring speed;

Research advances in and application of chiral phase-transfer catalysts;

Synthesis of A New Type of Chiral Phase-Transfer Catalyst;

The phase-transfer catalysts in organic synthesis reactions;

Different phase transfer catalysts with different molecular weights,i.

p Chlorophenylacetic acid was synthesized by the hydrolysis reaction of p chlorobenzyl cyanide in the alkaline aqueous solution with the presence of C 6H 5CH 2(CH 3) 3N +Cl - as phase transfer catalysts.

A variety of new chiral phase transfer catalysts have emerged to this area and added the new vitality to it.

This paper reviews the research activities of calixarenes in the area of inverse phase transfer catalysts,artificial enzyme and the others in recent years.