Karstedt s catalyst

Manufactured by Merck Group

Sourced in Canada, Germany

Karstedt's catalyst is a platinum-based organometallic complex used as a catalyst in various chemical reactions. It is commonly employed in the hydrosilylation of unsaturated organic compounds, a reaction that is widely used in the synthesis of organosilicon compounds. Karstedt's catalyst is known for its high activity and selectivity in these types of reactions.

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Karstedt’s catalyst xylene solution (3 citations) Karstedt catalyst (2 citations)

5 protocols using karstedt s catalyst

Synthesis and Characterization of Hybrid Nanomaterials

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Iso-propanol (i-PrOH, 99.5%, anhydrous), phenylselenyl bromide (PhSeBr, 98%), D-tartaric acid (DTA, 98%), D-lactic acid (DLA, 98%), 1,2,3,4,5-pentafluoro-6-iodobenzene (PFIB, 98%), 1,4-diiodotetrafluorobenzene (DIFB, 98%), dimethylsulfate (DMS, 99%), benzyl chloride (BC, 98%), copper acetate (Cu²⁺, 98%) and Karstedt’s catalyst (Pt(0), 2% Pt in xylene) were purchased from Sigma-Aldrich. All other reagents were used as received, unless mentioned elsewhere. The diblock copolymer P2VP₆₈-b-PFMA₄₁ (P2VP = poly(2-vinyl pyridine), PFMA = poly(2-(perfluorooctyl)ethyl methacrylate, the subscripts represent the numbers of repeating units) was synthesized via sequential anionic polymerization^{30 (link)}. Carbon nanotubes with hydroxyl surface groups (CNTs, multi-walled, the inside diameter of 5–12 nm and the outside diameter of 30–50 nm) was purchased from Sigma-Aldrich. Graphene oxide nanosheets (GOs) was purchased from Tanfeng Tech. Inc. Carboxyl-decorated polystyrene spheres (NSs, diameter of 90 nm) were purchased from BaseLine Chrom. Tech. Research Centre. The CNTs, GOs, and NSs solution (1.0 mg/mL, i-PrOH) were dispersed via sonication (50 W sonication processor equipped with a titanium sonotrode) at 0 °C for 15 min before use.

Jin B., Sano K., Aya S., Ishida Y., Gianneschi N., Luo Y, & Li X. (2019). One-pot universal initiation-growth methods from a liquid crystalline block copolymer. Nature Communications, 10, 2397.

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Polymer Synthesis for Advanced Materials

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Decane (99+%) and Karstedt’s catalyst were purchased from Sigma-Aldrich (Oakville, ON, Canada) and used without further purification.
The PFS₅₃-b-PI₆₃₇ (M_n, GPC = 56,300, Đ = 1.01) and PFS₆₀-b-PDMS₆₆₀ were synthesized by one of us and have been reported in ref [39 (link)].

Guerin G., Rupar P.A, & Winnik M.A. (2021). In-Depth Analysis of the Effect of Fragmentation on the Crystallization-Driven Self-Assembly Growth Kinetics of 1D Micelles Studied by Seed Trapping. Polymers, 13(18), 3122.

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Heterocyclic Compound Synthesis by Azide-Alkyne Cycloaddition

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Allyl chloride, 98% (CAS 107-05-1), tetra-n-butylammonium fluoride (1 M solution in THF, CAS 429-41-4), copper (I) iodide, 98% (CAS 7681-65-4) and N,N-Dimethylformamide, 99.9% (CAS 68-12-2) were obtained from ABCR. Sodium azide (CAS 26628-22-8), diphenylether, 99% (CAS 101-84-8) and triethylamine, 99% (CAS 121-44-8) were obtained from Acros Organics. Karstedt’s catalyst (CAS 11057-89-9), diphenylacetylene, 98% (CAS 501-65-5), chlorodimethylsilane, 98% (CAS 1066-35-9) and lithium aluminum hydride (CAS 16853-85-3) were obtained from Sigma-Aldrich. All chemicals were used as received.
The solvents were purified by distillation under reduced pressure in argon.

Ardabevskaia S.N., Chamkina E.S., Krasnova I.Y., Milenin S.A., Sukhova E.A., Boldyrev K.L., Bakirov A.V., Serenko O.A., Shifrina Z.B, & Muzafarov A.M. (2022). Controllable Synthesis of Hybrid Dendrimers Composed of a Carbosilane Core and an Aromatic Shell: Does Size Matter?. International Journal of Molecular Sciences, 23(24), 15461.

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Synthesis of Functionalized Benzene Derivatives

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4-(Decyloxy)benzoic acid, benzyl-4-hydroxy benzoate, N,N′-diisopropylcarbodiimide (DIC), 4-(dimethylamino)pyridine (DMAP), 10% Pd-C, trimethoxysilane, karstedt’s catalyst (platinum (0)-1,3 divinyl-1,1,3,3-tetramethyldisiloxane complex solution in xylene) were purchased from Sigma Aldrich and used without further purification. The solvents used in the synthesis namely, dichloromethane, 1,4-cyclohexadiene, allyl alcohol, toluene, were of analytical grade. As received solvents were dried over molecular sieves (4 Å, 1–2 mm from Alfa Aesar) and the resulting anhydrous solvents were used to carry out the reactions. All the intermediate compounds were purified by column chromatography on silica gel (60–120 mesh) followed by repeated crystallization.

Sivaranjini B., Mangaiyarkarasi R., Ganesh V, & Umadevi S. (2018). Vertical Alignment of Liquid Crystals Over a Functionalized Flexible Substrate. Scientific Reports, 8, 8891.

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Synthesis of Functionalized Organic Compounds

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Solvents were purified by standard methods before use [25 ]. The 4,4,5,5-tetramethyl-1,3,2-dioxaphospholane 2-oxide was purchased from TCI Chemicals (TCI Europe N. V.- Tokyo Chemical Industry, Brussels, Belgium). All bromoalkenes, 1,8-dibromooctane, bithiophene, and tetrakis(triphenylphosphine)palladium (0) (Pd(PPh₃)₄) were purchased from Fluorochem. n-Butyllithium (1.6 M solution in hexane), Karstedt′s catalyst and chlorodimethylsilane were purchased from Sigma Aldrich (Merck, KGaA, Darmstadt, Germany), and bromotrimethylsilane was purchased from Acros Organics (Thermo Fisher Scientific, Geel, Belgium). All chemicals were used as purchased without further purification. Thin-layer chromatography was performed on Merck TLC plates of silica gel 60, F-254, visualization under UV 254 nm and 365 nm, for column chromatography was used silica gel 60 (Merck).

Feriancová L., Kmentová I., Micjan M., Pavúk M., Weis M, & Putala M. (2021). Synthesis and Effect of the Structure of Bithienyl-Terminated Surfactants for Dielectric Layer Modification in Organic Transistor. Materials, 14(21), 6345.

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