Hydrosilylation of n-alkenes and allyl chloride over platinum supported on styrene–divinylbenzene copolymer

Platinum(II) complexes bearing bulky Schiff base ligands anchored onto mesoporous SBA‐15 supports as efficient catalysts for hydrosilylation

“…This is in accordance with XPS analysis of O 1s, as the peak at 531.50 eV in the O 1s spectrum (supporting information, Figure S6) revealed the binding energy of O → Pt, which provided evidence of coordination between the platinum center and the ligand in the catalyst. [46,57,59] As expected, the microstructure of the SBA-15 solid support did not collapse after its successful modification with the platinum complex. To our surprise, it seemed that the stabilization of binary ligands prevented the platinum atoms from aggregating into large particles, and enabled them to form small nanoclusters with diameters of ca 1 nm instead (Figure 4c).…”

Mechanistic insights into the iridium-catalyzed hydrosilylation of allyl compounds

“…The common platinum-based hydrosilylation catalysts were employed in these transformations and mechanistic studies have revealed several reaction pathways, in some cases leading to byproduct formation and thus low selectivities [4][5][6][7][8][9][10]. This holds true especially for the hydrosilylation of allyl chloride, which is the most widely used allyl compound in industry [1,2].…”

Chlorine‐Free Catalytic Formation of Silsesquioxanes with Si‐OH and Si‐OR Functional Groups

“…Materials and Methods: The chemicals were purchased from the following sources: Hybrid Plastics for tetrasilanolPOSS (C 48 H 44 O 14 Si 8 ) (DDSQ‐4OH) disilanolPOSS (C 32 H 74 O 13 Si 8 ) ( i Bu 8 POSS‐2OH) and trisilanolPOSS (C 28 H 66 O 12 Si 7 ) ( i Bu 7 POSS‐3OH); POCH for methanol, 2‐propanol, ethyl acetate and copper acetate hydrate; Merck for dichloromethane (DCM), tetrahydrofuran (THF), diethyl ether, n ‐pentane, benzene, chloroform, [D]chloroform, sodium metal, benzophenone, 1,5‐cyclooctadiene, sodium trimethylsilanolate, chlorosilanes, palladium catalysts [Pd(PPh 3 ) 4 ] and Pd/C (Pd on activated carbon), Pt/C (Pt on activated carbon, Degussa type), [Pt 2 (dvds) 3 ] (Karstedt's catalyst) 2 % xylene solution, platinum and rhodium acetylacetonates, rhodium chloride, calcium hydride, molecular sieves and anhydrous magnesium sulfate, triethylamine and silica gel 60. Silsesquioxane substrates were prepared according to the literature procedures, so too were Pt/SDB, Rh/SDB, Rh/SiO 2 and [RhCl(cod)] 2 . All solvents and alcohols were dried with sodium or CaH 2 prior to use and stored under argon over type 3A molecular sieves.…”

“…Materials and Methods: The chemicals were purchased from the following sources: Hybrid Plastics for tetrasilanolPOSS (C 48 [78][79][80][81] All solvents and alcohols were dried with sodium or CaH 2 prior to use and stored under argon over type 3A molecular sieves. THF was distilled under argon from a sodium/ benzophenone system prior to use.…”