Search results
Results from the WOW.Com Content Network
Scandium trifluoromethanesulfonate, commonly called scandium triflate, is a chemical compound with formula Sc(SO 3 CF 3) 3, a salt consisting of scandium cations Sc 3+ and triflate SO 3 CF − 3 anions. Scandium triflate is used as a reagent in organic chemistry as a Lewis acid. [1]
(CH 3) 3 SiO 3 SCF 3 + H 2 O → (CH 3) 3 SiOH + HO 3 SCF 3. It is far more electrophilic than trimethylsilyl chloride. Related to its tendency to hydrolyze, TMSOTf is effective for silylation of alcohols: [2] (CH 3) 3 SiO 3 SCF 3 + ROH + Et 3 N → ROSi(CH 3) 3 Si + [Et 3 NH]O 3 SCF 3. A common use of (CH 3) 3 SiO 3 SCF 3 is for the ...
In organic chemistry, triflate (systematic name: trifluoromethanesulfonate), is a functional group with the formula R−OSO 2 CF 3 and structure R−O−S(=O) 2 −CF 3. The triflate group is often represented by −OTf, as opposed to −Tf, which is the triflyl group, R−SO 2 CF 3. For example, n-butyl triflate can be written as CH 3 CH 2 CH ...
Hf(OTf) 4 accelerated the reaction rate under milder conditions with only 0.1 mol% catalyst loading. For example, Hf(OTf) 4 catalyzes the reaction between benzaldehyde and 2.0 equiv. of either ethanethiol or 1.0 equiv. of propane-1,3,-dithiol readily in quantitative yield. Hf(OTf) 4 catalyzed thioacetalization of benzaldehyde
Lanthanide triflates are proposed for Friedel-Crafts acylations and alkylations, which are often carried out with AlCl 3 as the catalyst in an organic solvent. The nature of the Friedel-Craft reaction, especially the acylation, forces the AlCl 3 to irreversibly complex with any oxygen-containing group in the product, with the only way of decomplexing it being to destroy the AlCl 3 part with ...
Select the product that you would like to download. Depending on the product, you may be redirected to a new page to enter your credentials. If you forget these, just click forgot password and follow the instructions. Once you're logged in, follow the steps to use the service.
Silver trifluoromethanesulfonate, or silver triflate is the triflate (CF 3 SO 3 −) salt of Ag +. It is a white or colorless solid that is soluble in water and some organic solvents including, benzene. It is a reagent used in the synthesis of organic and inorganic triflates.
Computer not cooperating? We've all been there. If you're having issues with downloading any of the products or services from AOL Premium Subscription Products, here is a list a list of websites and phone numbers for each of the products' tech support teams.