Application of polyethyleneglycol (PEG) functionalized ionic liquids for the rhodium-catalyzed hydrosilylation reaction of alkenes

Synthesis of Single Atom Based Heterogeneous Platinum Catalysts: High Selectivity and Activity for Hydrosilylation Reactions

“…In general, catalytic hydrosilylations are performed using molecularly defined (pre)catalysts containing mainly Pt, 5 , 6 but also Ru, 7 , 8 Pd, 9 and Rh. 10 , 11 In fact, some of these reactions constitute the largest-scale examples of homogeneous catalysis with noble metals. Nowadays, platinum-based complexes such as Speier’s 6 and Karstedt’s catalysts formed by reaction of 1,3-divinyl-1,1,3,3-tetramethyldisiloxane with chloroplatinic acid and PtCl 2 (cyclooctadiene) are the most extensively used industrial catalysts, despite the cost of the precious metal.…”

“…Olefin hydrosilylation is an important process to form alkylsilanes by catalytic addition of Si–H bonds to olefins. , The resulting products find widespread application in the manufacture of silicone-based aerogels, surfactants, release coatings, lubricants, and adhesives. , Furthermore, organosilicon compounds are of interest for the design of novel catalysts, defense materials and life science products. In general, catalytic hydrosilylations are performed using molecularly defined (pre)­catalysts containing mainly Pt, , but also Ru, , Pd, and Rh. , In fact, some of these reactions constitute the largest-scale examples of homogeneous catalysis with noble metals. Nowadays, platinum-based complexes such as Speier’s and Karstedt’s catalysts formed by reaction of 1,3-divinyl-1,1,3,3-tetramethyldisiloxane with chloroplatinic acid and PtCl 2 (cyclooctadiene) are the most extensively used industrial catalysts, despite the cost of the precious metal.…”

The effect of the morpholinium ionic liquid anion on the catalytic activity of Rh (or Pt) complex–ionic liquid systems in hydrosilylation processes

“…13 Moreover, reactions of hydrosilylation, in which ILs immobilize platinum or rhodium catalysts, should be mentioned here. [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] In most cases, ILs can well dissolve and immobilize metal complexes and, at the same time, they are insoluble in reactants thus enabling to perform processes in biphasic systems and to easily isolate products (aer a reaction) with the possibility of reusing the catalytic system. Organic molten alkylpyridinium and dialkylimidazolium salts were also used as thermoregulated supports for rhodium complexes.…”

Development of siloxane-based amphiphiles as cell stabilizers for porous shape memory polymer systems

“…Siloxane units served as the hydrophobic components, and polyethylene glycol (PEG) allyl methyl ether acted as the hydrophilic constituent. Hydrosilylation was used to synthesize the amphiphiles, which were then chemically and physically characterized [15,20–23]. Reliable production of SMP foams with reproducible thermo-mechanical properties and cell structure is important for the utilization of the foams for a variety of medical applications, such as vascular occlusion devices for use in aneurysm treatment.…”