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Lanthanum triflate

Webb[Na-2[Ln(2)(Sal)(4)(CF3SO3)(2)(H2O)(4)](CF3SO3)(2)](n) Ln = Nd (1) and Eu (2) were synthesized from the reaction of salicylaldehyde, lanthanide(III) triflates, WebbLanthanum trifluoromethanesulfonate is used in the Aldol reaction of silyl enol ethers with aldehydes. It is an effective catalyst for the Baylis-Hillman reaction. It also catalyzes Michael additions to methyl vinyl ketone in water.

La(OTf)3 C3F9LaO9S3 ChemSpider

Webb9 juli 1993 · In the previous paper, we reported that lanthanide trifluoromethanesulfonate (lanthanide triflate, Ln (OTf)3),.especially ytterbium triflate (Yb (OTf)3), was a good catalyst in the Diels-Alder reaction of some dienophiles with cyclopentadiene. Webb10 mars 2003 · Notably, the use of lanthanum triflate allows the etherification of the acid sensitive epoxy alcohol 11 derived from cinnamyl alcohol. Etherification of 11 under our standard conditions (5 mol% La (OTf) 3, toluene, rt) resulted in rapid decomposition of the alcohol, and no desired product was isolated. However, when the reaction was carried … class 7 maths chapter 2 exercise 2.2 https://wylieboatrentals.com

Lanthanide (III) Triflates as a Novel Recyclable Catalysts for Unit ...

Webb4 juni 2024 · In addition, though Eu(OTf) 3, Tb(OTf) 3 are stronger crosslinkers than nitrate salts, the polymer films with lanthanide triflate salts exhibit better self-healing abilities. The discrepancy between solution state and solid film state is attributed to the difference in crosslink dynamics between solution and films. Webb1 jan. 1995 · The 6(CF3), region Figure 8 illustrates the concentration dependence of the 6(CFA region for lanthanum triflate dissolved in PEGM. The large absorption band at 762 cm-1 is dominating the spectra for all concentrations, while the other band at 7 54 cm- I is largest for the n = 10 sample and then decreases with both increased and decreased … WebbLanthanum triflate was found to be the most suitable catalyst for this transformation, giving a yield of 84% (entry 10). A blank experiment without metal triflate afforded 25% yield (entry 11). Because the solubility of halides and aldehydes in water is very low, the … downloading aws cli

Lanthanum triflate - Big Chemical Encyclopedia

Category:Ytterbium(III) triflate, 99.9%, (trace metal basis), anhydrous, …

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Lanthanum triflate

(PDF) Silica supported lanthanum triflate mediated synthesis of 5 ...

WebbLanthanum (III) Trifluoromethanesulfonate 52093-26-2 東京化成工業株式会社 CAS RN: 52093-26-2 製品コード: T1293 Lanthanum (III) Trifluoromethanesulfonate 純度（試験方法）: >98.0% (T) 別名: トリフルオロメタンスルホン酸ランタン (III) ランタ … Webb20 aug. 2009 · Screening of the metal triflates was conducted with the polycondensation of lactic acid at 160–180 °C for 16 h under reduced pressure (1.4 kPa) after a pre-dehydration process under an air atmosphere. Examined metal triflates are scandium, yttrium, ytterbium, lanthanum, hafnium, copper, and silver triflates.

Lanthanum triflate

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Webb9 feb. 2024 · The lignocellulosic sugars studied in this work include 1) pyrolytic sugars from pyrolysis oil, and 2) sugars derived from ionic liquid (IL)-pretreated biomass. Under moderate conditions (250 °C, 1 h), levoglucosan (major pyrolytic sugar), glucose, and xylose were converted into lactic acid with carbon-based molar yields of 75, 74, and 61 … Webb13 maj 2009 · Our strategy for examining triflate dissociation was to use luminescence-decay measurements, which are commonly used to study water-coordination number with lanthanide-based contrast agents for magnetic resonance imaging. 6, 7 In using this technique, two solutions of a europium (or terbium) complex are prepared: one in a …

WebbSilica supported lanthanum triflate mediated synthesis of 5-substituted-1H tetrazoles . × Close Log In. Log in with Facebook Log in with Google. or. Email. Password. Remember me on this computer. or reset password. Enter the email address you signed up … WebbLanthanum (CAS Number 52093-26-2) : Strem Product Catalog CAS Number: 52093-26-2 Product Catalog 57-2800 Lanthanum › Lanthanum (III) trifluoromethanesulfonate, min. 97% (Lanthanum triflate) Product Detail Safety Data Sheet Certificates of Analysis Stability: hygroscopic Price & Availability Choose Your Country E-Mail a Friend

Webb1 sep. 2007 · Lanthanum Trifluoromethanesulfonate [La (OTf)3] Promoted Indium-Mediated Coupling of Ethyl 4-Bromocrotonate With Carbonyl Compounds in Water Article Mar 1996 SYNLETT Sook-Chiang Ho Diana... Webb1 sep. 2007 · Lanthanum Trifluoromethanesulfonate [La (OTf)3] Promoted Indium-Mediated Coupling of Ethyl 4-Bromocrotonate With Carbonyl Compounds in Water …

WebbLanthanum tris (trifluoromethanesulfonate) [ACD/IUPAC Name] lanthanum (iii) triflate. Lanthanum (III) trifluoromethanesulfonate. Methanesulfonic acid, 1,1,1-trifluoro-, lanthanum salt (3:1) [ACD/Index Name] MFCD00077560 [MDL number] Trifluoromethanesulfonic acid lanthanum salt. Tris (trifluorométhanesulfonate) de …

WebbLanthanum triflate was found to be the most suitable catalyst for this transformation, giving a yield of 84% (entry 10). A blank experiment without metal triflate afforded 25% yield (entry 11). Because the solubility of halides and aldehydes in water is very low, the Sommelet reaction proceeded sluggishly class 7 maths chapter 1 notesWebbAlfa Chemistry offers Lanthanum(III) trifluoromethanesulfonate (52093-26-2) for experimental / research use. View information & documentation regarding Lanthanum(III) trifluoromethanesulfonate, including CAS, structure & more. class 7 maths chapter 5 book pdfWebbCAS: 52093-26-2: Molecular Formula: C 3 F 9 LaO 9 S 3: Molecular Weight (g/mol) 586.1: MDL Number: MFCD00077560: InChI Key: WGJJZRVGLPOKQT-UHFFFAOYSA-K: Synonym: lanthanum iii trifluoromethanesulfonate, lanthanum triflate, lanthanum trifluoromethanesulfonate, la otf 3, lanthanum iii triflate, lanthanum tris … class 7 maths chapter 3 solutions