18822-50-9

Usage

Uses

Used in the Chemical Industry:
Tris(triphenylsiloxy)vanadium oxide is used as a catalyst for the Meyer-Schuster rearrangement, a reaction that involves the isomerization of an osotrile to an α,β-unsaturated carbonyl compound. Its unique catalytic properties enable efficient and selective transformations in this process.
Tris(triphenylsiloxy)vanadium oxide is also used as a catalyst in esterification reactions, where it promotes the formation of esters from carboxylic acids and alcohols. Its ability to activate both reactants contributes to the improved yield and selectivity of the esterification process.
In the field of organic synthesis, Tris(triphenylsiloxy)vanadium oxide is employed as a catalyst for the addition of propargyl alcohols and imines or aldehydes. Tris(triphenylsiloxy)vanadium oxide facilitates the formation of various complex molecular structures, which are valuable in the synthesis of pharmaceuticals, agrochemicals, and other specialty chemicals.
Furthermore, Tris(triphenylsiloxy)vanadium oxide is used as a catalyst in the photochemical polymerization of methyl methacrylate (MMA). Its catalytic activity allows for the controlled growth of polymer chains, leading to the production of polymers with desired properties, such as molecular weight, polydispersity, and architectural control. This application is particularly relevant in the plastics and materials industry, where tailored polymers are sought for specific applications.

InChI:InChI=1/3C18H16OSi.O.V/c3*19-20(16-10-4-1-5-11-16,17-12-6-2-7-13-17)18-14-8-3-9-15-18;;/h3*1-15,19H;;/r3C18H16OSi.OV/c3*19-20(16-10-4-1-5-11-16,17-12-6-2-7-13-17)18-14-8-3-9-15-18;1-2/h3*1-15,19H;

Upstream product

• 10544-50-0 sulfur 
• 7632-51-1 vanadiumtetrachloride 
• 2004-11-7 triphenylsilanol lithium salt 
• 5588-84-1 vanadium(V) oxytriisopropoxide 
• 791-31-1 triphenylhydroxysilane 
• 131063-11-1 Vanadium (III) chloride-(tris-tetrahydrofuran) 
• 109750-14-3 tris(triphenylsiloxo)-(4-methoxyphenyl-dithiophosphonato-S,S)-vanadium(V) 
• 7727-18-6 vanadium(V) oxychloride 
• 76-86-8 Triphenylsilyl chloride 
• 19692-74-1 tris-pyridine trichloro vanadium (III) 

Downstream Products

• 109750-14-3 tris(triphenylsiloxo)-(4-methoxyphenyl-dithiophosphonato-S,S)-vanadium(V) 

Relevant academic research and scientific papers

Chemo- And regioselective cross-dehydrogenative coupling reaction of 3-hydroxycarbazoles with arenols catalyzed by a mesoporous silica-supported oxovanadium

Cross-dehydrogenative coupling between 3-hydroxycarbazoles and 2-naphthols has been achieved by using a mesoporous silica-supported oxovanadium catalyst.

Direct Nucleophilic Substitution of Alcohols Using an Immobilized Oxovanadium Catalyst

Direct nucleophilic substitution of alcohols with thiols or carbon nucleophiles was achieved using a mesoporous silica-supported oxovanadium catalyst (VMPS4). Benzyl and allyl alcohols were compatible in this reaction under mild conditions, affording the products in high yields. The VMPS4 catalyst showed excellent chemoselectivity toward alcohols in the presence of acid-labile functional groups, which is in contrast to that observed for the commonly used Lewis acid catalysts, which exhibit poor selectivity. The VMPS4 catalyst could be recycled by simple centrifugation, and the catalytic activity was maintained over seven cycles.

Silanolato complexes of vanadium (III, IV)

Syntheses of the homoleptic trimethylsilanolato complexes V(OSiMe3)3 and V(OSiMe3)4 are described. The thiovanadium(V)compound VS(OSiPh3)3 (11) is formed from [V(OSiPh3)3/s

Triphenylsiloxy complexes. A novel compound containing a Mo(VI)-P Bond: MoO2(OSiPh3)2(PPh3)

Triphenylsiloxy complexes have been synthesized through direct silylation of silver metalates by triphenylchlorosilane. The Mo dioxo complex MoO2(OSiPh3)2 (1) is tetrahedral and crystallizes in the Fdd2 space group with a = 19.556(7) ?, b = 34.187(4) ?, c = 9.748(5) ?, V = 6517.3(3.6) ?3, and Dcalcd = 1.38 g/cm3 for Z = 8; final residuals R = 4.4% and Rw = 4.4%. An interesting compound, MoO2(OSiPh3)2(PPh3) (2), containing the first Mo(VI)-phosphine bond was also synthesized in this study and characterized by single-crystal X-ray diffraction. X-ray crystallographic data for compound 2: a = 18.498(4) ?, b = 10.818(3) ?, c = 24.844(3) ?, β = 107.08(1)°, V = 4753(2) ?3, Dcalcd =1.315 g/cm3 for Z = 4; final residuals R = 5.2% and Rw = 5.6% for 1236 (I > 3σ(I)) reflections and 194 variables. Compound 2 has a distorted trigonal bipyramidal structure with a Mo-P bond length equal to 2.759 ?. The preparation and a single-crystal X-ray structure of VO(OSiPh3)3 are also reported.

Oxo and Thiovanadium(V) Thiolates

Syntheses of oxovanadium(V) thiolates such as O = V(SR)3 (R = tC4H9, SiPh3) and O = V(OtC4H9)n(StC4H9)3-n (n = 1, 2) are described.The thiovanadium(V) compounds S = V(OtC4H9)3, S = V(StC4H9)(OtC4H9)2 and S = V(SSiPh3)3 have been prepared by various methods: substition using Lawesson reagent, oxidation of V(OtC4H9)4 by sulfur, or disproportionation reaction of VCl4 with LiSSiPh3; O = V(OSiR3)3 (R = Me, Ph) undergoes a reaction with Lawesson reagent to yield dithiophosphonate complexes.All compounds obtained are characterized by 1H and 51V NMR spectroscopy; the stability of thiovanadium(V) compounds is discussed.V(StC4H9)4 has been sythesized as a first example of vanadium(IV) thiolates. - Key words: Thiolato Oxovanadium(V), Thiolato Thiovanadium(V), Preparation, 51V NMR Spectra