The Sonogashira cross coupling reactions of various aryliodides with terminal alkynes are carried out in good to excellent yields under mild conditions.

This dissertion mainly describes several organic reactions of alkynes and allenes,including Cu-catalyzed Sonogashira cross-coupling reaction,plladium-catalyzed cyclization of N-arylpropiolamides with arynes,and electrophilic cyclization of allenes.

Methods:Sonogashira coupling reaction of terminal alkyne and(E)-β-iodovinyl sulfone was used to synthesis the product.

Study on Merrifield Resin-supported Palladium-catalyzed Heck and Sonogashira Reactions in Green Media

This paper introduces the salt assistance to Pd-catalyzed Suzuki, Heck, Stille and Sonogashira reactions as well as ary- lation of enolate, ortho-arylation of phenol and carbonylation.

This thesis contains four parts, which mainly described the Sonogashira reactions catalyzed by CuI, Sm system and the cyclic coupling reactions to synthesize biindoles.

Evaluation of correlation between gelatin crosslinking indicators and influence factors;

To study on catalytic mechanism and crosslinking kinetics of a silane grafting with polyethylenes,this work described an effect of tin carboxylate on the crosslinking,employing the acidic,basic and salt catalysis.

The crosslinking reaction between these two polymers was studied by transmission electron microscope (TEM).