Trimethylsilyl triflate
WebDescription. Trimethylsilyl trifluoromethanesulfonate is used to prepare powerful Lewis acid, difluoroboron triflate etherate in acetonitrile solvent. It is also used as a reagent in a … WebJan 19, 2024 · Up to now, the structure of benzyne species has been confirmed from a microscopic point of view using infrared spectroscopy, nuclear magnetic resonance detection, low-temperature scanning tunneling microscopy, and atomic force microscopy. 32–35 In 1983, Kobayashi et al. utilized o-trimethylsilyl aryl trifluoromethanesulfonate to …
Trimethylsilyl triflate
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WebTrimethylsilyl trifluoromethanesulfonate has been used in combination with boron trifluoride etherate for the copper-catalyzed asymmetric allylic alkylation (AAA) of allyl … WebHeating this trimethylsilyl protected triflate in refluxing ethlyene glycol closed the ring to give oxetane 12. Scheme 1 Preparation for AB ring synthesis. In the next phase (Scheme 2), starting from ketal 12, the cyclohexane ring was cleaved to provide two anchoring points for fusion with the A ring.
Web2-Chloro-6-(trimethylsilyl)phenyl triflate C10H12ClF3O3SSi CID 99938556 - structure, chemical names, physical and chemical properties, classification, patents ... WebTrimethylsilyl trifluoromethanesulfonate C4H9F3O3SSi CID 65367 - structure, chemical names, physical and chemical properties, classification, patents, literature ...
WebJan 1, 1981 · Trimethylsilyl triflate is a powerful silylating agent for organic compounds and acts as a catalyst which accelerates a variety of nucleophilic reactions in aprotic media. The reactions proceed via one-center, electrophilic coordination of the silyl group to hetero functional groups and exhibit unique selectivities. WebMar 11, 2024 · Product name: Trimethylsilyl trifluoromethanesulfonate; CBnumber: CB2358138; CAS: 27607-77-8; EINECS Number: 248-565-4; Synonyms: TMSOtf,trimethylsilyl trifluoromethanesulfonate; Relevant identified uses of the substance or mixture and uses advised against. Relevant identified uses: For R&D use only. Not for medicinal, household …
WebJan 9, 2024 · Tandem thia-Fries rearrangement--cyclisation of 2-(trimethylsilyl)phenyl trifluoromethanesulfonate benzyne precursors. Chem. Commun. (Camb.) 49(69) , 7602-4, (2013) A novel transformation of 2-(trimethylsilyl)phenyl trifluoromethanesulfonate aryne precursors is described. Detail
WebTo increase the rate of reaction, trimethylsilyl triflate may also be used in the place of trimethylsilyl chloride as a more electrophilic substrate. [4] [5] When using an unsymmetrical enolizable carbonyl compound as a substrate, the choice of reaction conditions can help control whether the kinetic or thermodynamic silyl enol ether is preferentially formed. [6] tissot prx automatic rose goldWeb2-(Chlorodiisopropylsilyl)-6-(trimethylsilyl)phenyl triflate serves as an efficient aryne precursor for intramolecular benzyne [4 + 2] or (2 + 2 + 2) cycloadditions. Key features of this precursor are (1) rapid connection of various arynophiles to the precursor via a Si–O bond and (2) generation of aryne under mild conditions using a combination of Cs 2 CO 3 and … tissot prx automatic powermatic 80 glacierWebCoupling reactions of O-(trimethylsilyl) glycosides and 6-O-(tert-butyldiphenylsilyl)-protected galactosides in the presence of trimethylsilyl triflate. A new method of forming .beta.-(1 .fwdarw. 6)-oligosaccharidic linkages. Eugenia M. Nashed; and ; Cornelis P. J. Glaudemans tissot prx automatic for saleWebtrimethylsilyl imidazole (TMSI), as is shown in Table 3. Thus, equimolecular amounts of TMSO 1 and triflic acid are mixed at room temperature and the trimethylsilyl triflate is directly distilled under vacuum from the mixture into a solution of the appropriate ketone and 1,s-diazabicyclo[5.4.0]undec-7-ene (DBU). tissot prx ebayWebTrimethylsilyl trifluoromethanesulfonate. CF3SO3Si(CH3)3. Synonyms: TMS triflate, TMSOTf, Trifluoromethanesulfonic acid trimethylsilylester. CAS 27607-77-8. Molecular … tissot prx buchererWebTrimethylsilyl Triflate Add to My Records Monograph ID: M11161. Title: Trimethylsilyl Triflate Molecular Formula: C 4 H 9 F 3 O 3 SSi Molecular Weight: 222.25 Percent … tissot prx alternativesWebDescription. Trimethylsilyl trifluoromethanesulfonate is used to prepare powerful Lewis acid, difluoroboron triflate etherate in acetonitrile solvent. It is also used as a reagent in a Dieckmann-like cyclization of ester-imides and diesters. Further, it is used in the conversion of carbonyl compounds to their enol ethers. tissot prx chronograph jomashop