4893-33-8Relevant academic research and scientific papers
Three Fluorinated Trityl Alcohols and their Lithium Salts – Synthesis, Molecular Structures, and Acidity
K?gel, Julius F.,Lork, Enno,L?kov, M?rt,Parman, Elisabeth,Leito, Ivo,Timoshkin, Alexey Y.,Beckmann, Jens
, p. 3612 - 3618 (2019)
The fluorinated trityl alcohols (C6F5)3COH, (C6H2F3)3COH and (C6(CF3)2H3)3COH were prepared in good to excellent yields by one-step procedures. These alcohols and their lithium salts were fully characterized by NMR and IR spectroscopy, mass spectrometry and XRD analysis. The molecular structures reveal that the differences in the fluorination patterns result in a divergent coordination behavior in their lithium salts. Experimental and computational studies concerning the acidity show similar electron withdrawing character of the substituents and disclose acidity properties in the range of phenols.
Revisiting the Perfluorinated Trityl Cation
Delany, Eoghan G.,Kaur, Satnam,Cummings, Steven,Basse, Kristoffer,Wilson, David J. D.,Dutton, Jason L.
supporting information, p. 5298 - 5302 (2019/03/11)
Although ultimately not isolable for X-ray structural characterization, the free perfluorinated trityl cation was shown to be observable in neat triflic acid, which represents milder conditions than previous reports of this cation in “magic acid” or oleum. A triflate-bound species could be generated in organic solvents using stoichiometric amounts of triflic acid and was shown to be synthetically viable for hydride abstraction from Et3SiH. It was demonstrated that the para-position on the -C6F5 rings is the primary point of attack for decomposition of the cation.
