Alkyne polymerization ionic

Several heterogeneous catalysts have been shown to effect related multicomponent couplings. These include cross-linked polymeric ionic liquid material-supported copper (Cu-CPSIL), silica-dispersed CuO (CuO/Si02), and imidazolium-loaded Merrifield resin-supported copper (Cu-PSIL), all of which can be used in water at room temperature to arrive at 1,4-disubstituted-1,2,3-triazoles from alkyl halides, NaNs, and terminal alkynes. Each can be filtered and reused several times with minimal loss of efficacy. Multistep flow synthesis, specifically including generation of underused vinyl azides and their subsequent click conversions to vinyl triazoles, has also been reported. ... 

The polymerization of acetylene (alkyne) monomers has received attention in terms of the potential for producing conjugated polymers with electrical conductivity. Simple alkynes such as phenylacetylene do undergo radical polymerization but the molecular weights are low (X <25) [Amdur et al., 1978]. Ionic and coordination polymerizations of alkynes result in high-molecular-weight polymers (Secs. 5-7d and 8-6c). 

Acyclic carbenes, with palladium isocyanides, 8, 258 Acyclic diene metathesis polymerization alkynes, 1, 191 characteristics, 1, 138 in ionic liquids, 1, 869... 

The following section deals with comparison study between the three immobilized copper catalysts, cross-linked polymeric material and ionic liquid-supported copper (Cu-CPSIL), imidazolium-loaded Merrifield resin-supported copper (Cu-PSIL), and silica-dispersed CuO (Cu0/Si02) and their application in the one-pot synthesis of l,4-disubstituted-l,2,3-triazoles by the reaction of alkyl halides with sodium azide and terminal alkynes in water at room temperature [36]. 

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