Nishida, Masakazu published the artcileMultiple pentafluorophenylation of 2,2,3,3,5,6,6-heptafluoro-3,6-dihydro-2H-1,4-oxazine with an organosilicon reagent: NMR and DFT structural analysis of oligo(perfluoroaryl) compounds, Recommanded Product: Trimethyl(perfluorophenyl)silane, the publication is Helvetica Chimica Acta (2006), 89(11), 2671-2685, database is CAplus.
The reagent Me3Si(C6F5) was used for the preparation of a series of perfluorinated, pentafluorophenyl-substituted 3,6-dihydro-2H-1,4-oxazines (2-8), which, otherwise, would be very difficult to synthesize. Multiple pentafluorophenylation occurred not only on the heterocyclic ring of the starting compound 1 (Scheme), but also in para position of the introduced C6F5 substituent(s) leading to compounds with one to three nonafluorobiphenyl (C12F9) substituents. While the tris(pentafluorophenyl)-substituted compound 3 could be isolated as the sole product by stoichiometric control of the reagent, the higher-substituted compounds 5-8 could only be obtained as mixtures The structures of the oligo(perfluoroaryl) compounds were confirmed by 19F- and 13C-NMR, MS, and/or X-ray crystallog. DFT simulations of the 19F- and 13C-NMR chem. shifts were performed at the B3LYP-GIAO/6-31++G(d,p) level for geometries optimized by the B3LYP/6-31G(d) level, a technique that proved to be very useful to accomplish full NMR assignment of these complex products.
Helvetica Chimica Acta published new progress about 1206-46-8. 1206-46-8 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Trimethyl(perfluorophenyl)silane, and the molecular formula is C9H9F5Si, Recommanded Product: Trimethyl(perfluorophenyl)silane.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia