1206-29-7

Upstream product

• 617-86-7 triethylsilane 
• 536-74-3 phenylacetylene 
• 100-42-5 styrene 
• 745783-97-5 triethyl(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)silane 
• 4747-15-3 1-(2-methoxyvinyl)benzene 
• 16881-77-9 (dimethoxy)methylsilane 
• 705-31-7 4-trifluoromethylphenylacetylene 

Downstream Products

• 139067-97-3 C₁₂H₁₄O₃ 
• 42599-24-6 E-styryl iodide 
• 57918-63-5 (Z)-styryl iodide 
• 140-10-3 (E)-3-phenylacrylic acid 
• 612-94-2 2-phenylnaphthalene 
• 1356011-10-3 C₂₀H₃₄Si 

Relevant academic research and scientific papers

Palladium(II) Complexes of a Neutral CCC-Tris(N-heterocyclic carbene) Pincer Ligand: Synthesis and Catalytic Applications

Treatment of tris-azolium precursor 1 with palladium acetate under thermal conditions provided a CCC-pincer palladium(II) complex (2) bearing three NHCs (one imidazolylidene and two triazolylidenes) and one iodide ligand. Further treatment of complex 2 with an excess of AgSbF6 generates tris(carbene) dicationic palladium complex 3 in which the iodine ligands are exchanged with SbF6 anions and the metal center is stabilized by one acetonitrile ligand. Complexes 2 and 3 were tested in several cross coupling reactions showing high conversions under low catalyst loadings and mild reaction conditions. Additionally, complexes 2 and 3 performed well in the hydrosilylation of terminal alkynes with good selectivity toward the E-isomer.

Oligoether substituted bis-NHC palladium and platinum complexes for aqueous Suzuki-Miyaura coupling and hydrosilylation

Abstract The synthesis of four oligo ethylene glycol substituted, bis-NHC palladium(II) and platinum(II) complexes is reported. Two of them were characterized by solid state structures. All complexes show excellent solubility in a variety of organic solvents and water. The palladium complexes were tested in the Suzuki-Miyaura coupling reaction and the platinum complexes in the hydrosilylation reaction of alkynes in aqueous solvent mixtures. All show a high catalytic activity at ppm level catalyst-loading under very mild reaction conditions.

Weakly-coordinated stable platinum nanocrystals

Stable platinum nanocrystals with small diameters (1.0-2.3 nm), that are stable for a long time, with narrow size distributions were easily and reproducibly prepared without any additional stabilizers in glycol, glycerol, the ionic liquids (ILs) 1-n-butyl-3-methyl-imidazolium tetrafluoroborate [BMIm][BF4] and N-butyl-N-trimethyl-ammonium bis(trifluoromethylsulfonyl)imide [N4111][NTf2] or diphenylmethane (CH2Ph2) by thermal, photolytic or microwave assisted decomposition of the organometallic precursor methylcyclopentadienyl-trimethylplatinum(iv), (MeCp)PtMe3. Decomposition of the easily dispensible, air and moisture stable organometallic Pt(iv) precursor (MeCp)PtMe3 leads to well defined, small, crystalline and longterm stable Pt-nanoparticle (Pt-NP) dispersions without any additional surface-capping ligands. The Pt-NP/IL dispersion was shown to be a highly active catalyst (TOF 96000 h-1 at 0.0125 mol% Pt and quantitative conversion) for the biphasic hydrosilylation of phenylacetylene with triethylsilane, to the distal and proximal products triethyl(2- and1-phenylvinyl)silane.

From Remote Alkenes to Linear Silanes or Allylsilanes depending on the Metal Center

The selective synthesis of linear silanes or allylsilanes from remote alkenes was explored. The cationic, unsaturated, 16-electron hydrido–silyl–RhIII complex was found to be an efficient catalyst for a tandem catalytic alkene isomerization–hyd

One-step entry to olefin-tethered N,S-heterocyclic carbene complexes of ruthenium with mixed ligands

A series of Ru(ii) mixed-ligand complexes RuBr2(PPh 3)2(N-AyBzTh) (Ay = prop-2-enyl; BzTh = benzothiazol-2-ylidene) (4), RuBr(OAc)(PPh3)(N-MeAyBzTh) (5), RuBr(OAc)(PPh3)(N-MeBnBzTh)2 (MeBn

Simple synthesis ofnewmixed isocyanide-nhc-platinum(ii) complexes and their catalytic activity

Using the new modular and convergent approach to isocyanide-N-hetrocyclic carbene-platinum(II) complexes, eight new compounds have been synthesised. For three of these, detailed structural data could be obtained by X-ray crystal structure analyses. This n

Highly stereoselective and efficient hydrosilylation of terminal alkynes catalyzed by [RuCl2(p-cymene)]2

(Formula presented) With [RuCl2(p-cymene)]2 as a catalyst, extremely high regio-and stereoselectivity was observed in the hydrosilylation reaction of various terminal alkynes under mild conditions to afford β-(Z)-vinylsilanes in exce

Engineering regioselectivity in the hydrosilylation of alkynes using heterobimetallic dual-functional hybrid catalysts

The synthesis and characterization of carbon black supported rhodium and iridium heterobimetallic catalysts, termed hybrid catalysts, and their application in the hydrosilylation of alkynes is described. An aryl diazonium grafting procedure was applied to

Rhodium-catalyzed anti-Markovnikov hydrosilylation of alkenes

Rh-catalyzed anti-Markovnikov hydrosilylation of terminal alkenes and tertiary silanes using readily-available PPh3 as the ligand was reported. This method facilitated the effective synthesis of alkylsilanes with a wide substrate scope and high

Iridium(i) complexes bearing hemilabile coumarin-functionalised N-heterocyclic carbene ligands with application as alkyne hydrosilylation catalysts

A set of iridium(i) complexes of formula IrCl(κC,η2-IRCouR′)(cod) or IrCl(κC, η2-BzIRCouR′)(cod) (cod = 1,5-cyclooctadiene; Cou = coumarin; I = imidazolin-2-carbene; BzI = benzimidazolin-2-carbene) have beeen prepared from the corresponding azolium salt and [Ir(μ-OMe)(cod)]2 in THF at room temperature. The crystalline structures of 4b and 5b show a distorted trigonal bipyramidal configuration in the solid state with a coordinated coumarin moiety. In contrast, an equilibrium between this pentacoordinated structure and the related square planar isomer is observed in solution as a consequence of the hemilability of the pyrone ring. Characterization of both species by NMR was achieved at the low and high temperature limits, respectively. In addition, the thermodynamic parameters of the equilibrium, ΔHR and ΔSR, were obtained by VT 1H NMR spectroscopy and fall in the range 22-33 kJ mol-1 and 72-113 J mol-1 K-1, respectively. Carbonylation of IrCl(κC,η2-BzITolCou7,8-Me2)(cod) resulted in the formation of a bis-CO derivative showing no hemilabile behaviour. The newly synthesised complexes efficiently catalyze the hydrosilylation of alkynes at room temperature with a preference for the β-(Z) vinylsilane isomer.