Facile Suzuki coupling over ortho-metalated palladium(II) complex anchored on 2D-hexagonal mesoporous organosilica

Highly Efficient Hydroformylation of 1‐Hexene over an ortho‐Metallated Rhodium(I) Complex Anchored on a 2D‐Hexagonal Mesoporous Material

“…[43] In a typical synthesis, cetylpyridinium chloride (CPC; Loba Chemie; 3.58 g, 1 ϫ 10 -2 mol) and Brij- Sigma-Aldrich; 6.25 g, 3.0 ϫ 10 -2 mol) and phenyltrimethoxysilane (PTMOS; Sigma-Aldrich; 1.99 g. 1.0 ϫ 10 -2 mol) were added to the mixture under continuous stirring for 0.5 h. Tetramethylammonium hydroxide (TMAOH; Sigma-Aldrich, 25 % aqueous solution) was then added dropwise, and the solution was maintained at pH ≈ 10.5. The resulting mixture was stirred at 298 K for 24 h and then treated hydrothermally at 348 K for 72 h followed by filtration, drying and extraction with acidic ethanol to yield the phenyl-functionalised mesoporous silica A. Analytical-grade reagents and freshly distilled solvents, pure and dry hydrogen gas and pre-distilled solvents were used throughout the investigation.…”

“…[13,28] Recently, our group has reported the synthesis of an orthometallated Pd II compound anchored onto functionalised mesoporous silica and its efficient use as a heterogeneous catalyst for Suzuki coupling reactions. [43] We herein report the synthesis, characterisation and catalytic application of a rhodium(I)-anchored functionalised mesoporous silica. The material was synthesised by the nitration of the phenyl group anchored onto the silica surface and then reduction to the amine followed by Schiff base condensation.…”

Silver nanoparticle (AgNPs) doped gum acacia–gelatin–silica nanohybrid: An effective support for diastase immobilization

“…Average size of the pore for the nanohybrid is 3.0 nm and this is large enough to overcome the diffusion limitation of the porous gel. BET of H 3 -Enz indicated negative adsorption (isotherm not shown) indicating, no available void space for the N 2 molecules to get adsorbed at the pore surface [46,47] of H 3 -Enz.…”

Nanosized Mn(acac)3 Anchored on Amino Functionalized Silica for the Selective Oxidative Synthesis of 2-arylbenzimidazoles, 2-arylbenzothiazoles and Aerobic Oxidation of Benzoins in Water

“…Among various solid supports commonly used for the preparation of heterogeneous catalysts, silica's have received more attention [1,[7][8][9][10][11][12][13][14].…”