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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 ...
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 ...
Copper(II) triflate is the copper(II) salt of trifluoromethanesulfonic acid (known simply as triflic acid) which has a chemical formula of Cu(OSO 2 CF 3) 2, abbreviated Cu(OTf) 2. This substance, first reported in 1972, [ 2 ] is a powerful Lewis acid .
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]
Hf(OTf) 4, was the most effective in comparison to other Lewis acids including BF 3 • OEt 2, Sc(OTf) 3, and Zr(OTf) 4. Similalrly, Hf(OTf) 4 shows excellent activity in Friedel-Crafts alkylation’s, and enabled the alkylation of benzene with benzylic and tertiary alkyl chlorides .
OTF knife, or sliding knife, a type of pocketknife; OpenType, a standard for digital typography (file extension .otf) Optical transfer function, a metric for evaluating optical systems; Triflate, in organic chemistry, a functional group represented by the symbol -OTf; Off-the-film metering, in camera metering systems, a type of through-the-lens ...
This is a list of films produced by the Indian Hindi-language film industry, popularly known as Bollywood, based in Mumbai, ordered by year and decade of release.Although "Bollywood" films are generally listed under the Hindi language, most are in Hindustani and in Hindi with partial Bhojpuri, Punjabi, Urdu and occasionally other languages.
Zinc trifluoromethanesulfonate or zinc triflate is the zinc salt of trifluoromethanesulfonic acid.It is commonly used as a Lewis acid catalyst, e.g. in silylations. [1]A white powder, zinc triflate is commercially available, though some workers have experienced inconsistent results with zinc triflate from different sources.
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