Tseng, Hsi-Ching published the artcile[¦Ç5-Cp*B-Mes]+: A Masked Potent Boron Lewis Acid, Safety of Bis(4-fluorophenyl)methane, the publication is Organometallics (2019), 38(22), 4516-4521, database is CAplus.
The chem. of the B cation was revitalized in the past decade due to its newfound application in stoichiometric and catalytic organic reactions. To extend the frontier of B cation catalysis, the authors came to discover that a mesityl-substituted ¦Ç5-Cp*-coordinated B cation could serve as a powerful Lewis acid for organic catalytic transformations. The B cation [Cp*B-Mes][B(C6F5)4] ([1][B(C6F5)4]) stabilized in a boronium-like electronic structure binds to Et3PO readily and displays an acceptor number exceeding that of B(C6F5)3 on the Gutmann-Beckett acidity scale. The steric and electronic stabilization exerted by the electron-donating Cp* renders the highly Lewis acidic B cation an easy-to-handle catalyst for hydrodeoxygenation of aryl ketones at ambient temperature The exceptional catalytic performance of [1]+ implies that the incorporation of a coordinatively flexible substituent at B is critical in bringing catalytic activity and stability to B cation catalysts.
Organometallics published new progress about 457-68-1. 457-68-1 belongs to catalysis-chemistry, auxiliary class Fluoride,Benzene, name is Bis(4-fluorophenyl)methane, and the molecular formula is C18H17N5O3, Safety of Bis(4-fluorophenyl)methane.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia