Titanium isopropoxide

Manufactured by Thermo Fisher Scientific

Sourced in United States

Titanium isopropoxide is a metal-organic compound used as a precursor in various industrial and laboratory applications. It serves as a source of titanium in chemical processes and is commonly utilized in the synthesis of titanium-containing materials, coatings, and thin films.

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Titanium(IV) isopropoxide (13 citations) Titanium(IV) isopropoxide (TTIP, (2 citations) Titanium isopropoxide (Ti{OCH(CH3)2}4, (2 citations)

6 protocols using titanium isopropoxide

Synthesis of Chiral Epichlorohydrin Intermediates

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Example 1

General Synthetic Procedures, Preparation of Reaction Intermediates

(R)-epichlorohydrin 5 and (S)-epichlorohydrin ent-5 were purchased from Chem Impex. Alkyne 7, alkyne 19, alkyne 22, and anhydrous methanol (MeOH) were purchased from Sigma-Aldrich, St. Louis, Mo., USA. Chloroform (CHCl₃) and bromoform (CHBr₃) were purchased from Alfa Aesar, Tewksbury, Mass., USA. titanium isopropoxide (Ti(Oi-Pr)₄), and nitromethane (MeNO₂) were purchased from Acros Organics (Pittsburgh, Pa., USA), and titanium isopropoxide was distilled before use.

The hydrindane products of Ti-mediated annulation (alkene isomers) were used in subsequent steps as mixtures (the steroidal end products of the synthesis sequence were easily separated from byproducts generated from the minor “endo” diene isomer). For characterization of the major isomers formed from Ti-mediated annulation, a small amount of each mixture (<50 mg) was purified by HPLC to obtain analytical samples. (See, the trans-fused hydrindanes: 8, ent-8, 14, 17, 20, 23, 26, 29, 32, and S16).

US11459353B2. Steroids and methods of manufacture (2022-10-04). Trustees of Dartmouth College [US]. Inventors: Glenn C. Micalizio [US].

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Caprolactam-based Polyurethane Synthesis

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All reagents and solvents were reagent-grade purchasing from commercial companies and used as received. ε-Caprolactam (>99%) and titanium isopropoxide (98%) were obtained from Acros. N-methyl-ε-caprolactam (96%) and N-acetyl-ε-caprolactam (>99%) were purchased from Tokyo Chemical Industry Co., Ltd. Formic acid (88%) and acetone (98%) were purchased from Fisher Chemical. Adipic acid (99%) was from Showa. Polytetramethylene Ether Glycols were received from Aldrich. Poly(4,4′-methylenebis(phenyl isocyanate),Elasturan^® T 6961 (NCO content 23%) was obtained from BASF.

Ye J.Y., Peng K.F., Zhang Y.N., Huang S.Y, & Liang M. (2021). Synthesis and Characterization of N-Substituted Polyether-Block-Amide Copolymers. Materials, 14(4), 773.

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Synthesis and Characterization of Glucose Oxidase Nanomaterials

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Titanium isopropoxide (TiiP; ≥98%), allyl alcohol (≥99%; extra pure), d-(+)-glucose (ACS reagent, anhydrous) and glycidol (≥96%) were purchased from Acros Organics. Tetraethyl orthosilicate (TEOS; ≥98%), butan-1-ol (≥99.4%), hydrogen peroxide solution (H₂O₂; ∼30% w/w in H₂O), poly(allylamine hydrochloride) (PAH, average molar mass 17 500 g mol⁻¹) and Bradford reagent were purchased from Sigma-Aldrich. Ethyl acetate (for gas chromatography ECD and FID) and tetrapropylammonium hydroxide (TPAOH; 40% in H₂O) were purchased from Merck. Titanium(iv) sulfate (∼15%) was purchased from Fisher Scientific. Hydrochloric acid (HCl; ∼37%) and isopropyl alcohol (ⁱPrOH) were respectively purchased from VWR Chemicals and VWR Life Sciences. Glucose oxidase (GOx) from Aspergillus niger was purchased from TCI. Distilled water was used for all synthesis and treatment processes.

Van der Verren M., Smeets V., vander Straeten A., Dupont-Gillain C, & Debecker D.P. (2021). Hybrid chemoenzymatic heterogeneous catalyst prepared in one step from zeolite nanocrystals and enzyme–polyelectrolyte complexes. Nanoscale Advances, 3(6), 1646-1655.

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Multifunctional Titanium-Silica Hybrid Materials

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Materials Titanium isopropoxide (TiiP; ≥ 98%), allyl alcohol (≥ 99%; extra pure), D-(+)-glucose (ACS reagent, anhydrous) and glycidol (≥ 96%) were purchased from Acros Organics. Tetraethyl orthosilicate (TEOS; ≥ 98%), Butan-1-ol (≥ 99.4%), hydrogen peroxide solution (H 2 O 2 ; ≥ 30% w/w in H 2 O), poly(allylamine hydrochloride) (PAH, average molar mass 17 500 g.mol -1 ) and Bradford reagent were purchased from Sigma-Aldrich. Ethyl acetate (for gas chromatography ECD and FID) and tetrapropylammonium hydroxide (TPAOH; 40% in H 2 O) were purchased from Merck. Titanium (IV) sulfate (≥ 15%) was purchased from Fisher Scientific. Hydrochloric acid (HCl; ≥ 37%) and isopropyl alcohol (PrOH) were respectively purchased from VWR Chemicals and VWR Life Sciences. Glucose oxidase (GOx) from Aspergillus niger was purchased from TCI.
Distilled water was used for all synthesis and treatment processes.

Verren M.V.d., Smeets V., Straeten A.v., Dupont-Gillain C., & Debecker D.P. (2020). Hybrid Chemo-Biocatalysts Prepared in One Step from Zeolite Nanocrystals and Enzyme-Polyelectrolyte Complexes.

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Co-Based Catalysts with Diverse Structures

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Two Co-based model catalysts were supplied by Velocys, with structure and composition chosen to highlight active phase distribution changes in performance. Typically, 15 g of silica (Grace Davison, SG 432; particle size, 180 to 300 μm, pore volume, 1.2 ml g⁻¹) was dried in a fan oven at 100°C for 2 hours. The dried support was impregnated at an incipient wetness point with a solution of titanium isopropoxide (Alfa Aesar, 97%) in isopropanol (Fisher, 99.5%). The impregnated support was calcined in a muffle furnace using the following program: ramp at 2°C min⁻¹ to 100°C and hold for 3 hours, and then ramp at 2°C min⁻¹ to 300°C and hold for 5 hours. Co and Re were then deposited by incipient wetness of an aqueous solution of their precursors, cobalt nitrate hexahydrate (Alfa Aesar, 98%) and perrhenic acid (Sigma-Aldrich, 75 to 85 weight % in H₂O), respectively. Codeposition of Co and Re (before calcining) ensured thorough mixing and therefore uniform promotion. The sample was calcined following the same program as in the previous step. The resulting “conventional” catalyst had the composition 10% Co/1% Re on 5% TiO₂/SiO₂. A second sample was prepared with an “inverse configuration,” where the Ti modification was performed after the incorporation of the metals to the silica. The resulting “inverse” catalyst had the composition 5% Ti/10% Co/1% Re on SiO₂.

Price S.W., Martin D.J., Parsons A.D., Sławiński W.A., Vamvakeros A., Keylock S.J., Beale A.M, & Mosselmans J.F. (2017). Chemical imaging of Fischer-Tropsch catalysts under operating conditions. Science Advances, 3(3), e1602838.

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Synthesis of Titanium-Based Metal-Organic Frameworks

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All chemical agents were obtained from manufacturers and used as obtained without further purification. The following chemicals were used in the present study. Titanium isopropoxide: 97%, Alfa Aesar; titanium-diisopropoxide bis (acetyacetonate): 75%, Sigma Aldrich; H₂SO₄: 97%, Matsuneon Chemicals Ltd.; trimesic acid: 98%, Alfa Aesar; Cu(NO₃)₂.3H₂O: 99%, Dae Jung Reagent Chemicals; butanol: 99%, Junsei Chemical Co., Ltd; N,N-dimethylformamide (i.e. DMF): 99.8%, Macron Chemicals; acetonitrile: 99%, Burdick & Jackson, and iodine (i.e., I₂): Duksan Chemicals. Multi-walled carbon nanotubes (MWCNTs: CM-100) was purchased from Hanhwa Nanorech, Corp., and fluorine doped tin oxide (FTO, 8 ohm/sq, 77% transmittance in visible range) were obtained from Pilkington TEC Glass.

Lee D.Y., Shin C.Y., Yoon S.J., Lee H.Y., Lee W., Shrestha N.K., Lee J.K, & Han S.H. (2014). Enhanced photovoltaic performance of Cu-based metal-organic frameworks sensitized solar cell by addition of carbon nanotubes. Scientific Reports, 4, 3930.

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