Search results
Results from the WOW.Com Content Network
Hf(OTf) 4 mediated synthesis of altertoxins. Hf(OTf) 4, alongside Sc(OTf) 3 and In(OTf) 3, has been shown to activate alkynes and enable electrophilic substitution. In 2004 Song and Lee et al. reported Hf(OTf) 4-catalyzed Friedel-Crafts alkenylation of benzene with alkenyl derivatives. [7] Hf(OTf) 4 enabled electrophilic substitution of alkynes
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]
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 ...
Be(NO 3) 2: beryllium nitrate: 13597–99–4 Be(NO 3) 2 •4H 2 O: beryllium nitrate tetrahydrate: 13510–48–0 Be(NO 3) 2 •3H 2 O: beryllium nitrate trihydrate: 7787–55–5 BeO: beryllium oxide: 1304–56–9 Be(OH) 2: beryllium hydroxide: 13327–32–7 BeS: beryllium sulfide: 13598–22–6 BeSO 4: beryllium sulfate: 13510–49–1 ...
C 21 H 39 NO 3: N-Oleoylsarcosine: 110-25-8 C 21 H 44 N 2: N-Oleyl-1,3-propanediamine: 7173-62-8 C 22 H 23 ClN 2 O 2: loratadine: 79794-75-5 C 22 H 26 O 7: L-165041: 79558-09-1 C 22 H 28 N 2 O: fentanyl: C 22 H 30 O 8: Neurolenin B: C 23 H 13 Cl 2 Na 3 O 9 S Chrome Azurol S: 1667-99-8 C 23 H 19 ClF 3 NO 3: cyhalothrin: C 23 H 24 O 4 S Kadethrin ...
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.
Trifluoromethanesulfonic anhydride, also known as triflic anhydride, is the chemical compound with the formula (CF 3 SO 2) 2 O. It is the acid anhydride derived from triflic acid . This compound is a strong electrophile , useful for introducing the triflyl group , CF 3 SO 2 .
Triflic acid, the short name for trifluoromethanesulfonic acid, TFMS, TFSA, HOTf or TfOH, is a sulfonic acid with the chemical formula CF 3 SO 3 H. It is one of the strongest known acids. Triflic acid is mainly used in research as a catalyst for esterification. [2] [3] It is a hygroscopic, colorless, slightly viscous liquid and is soluble in ...