Barbero, Margherita published the artcileSynthetic and Mechanistic Aspects of Acid-Catalyzed Disproportionation of Dialkyl Diarylmethyl Ethers: A Combined Experimental and Theoretical Study, Safety of Bis(4-fluorophenyl)methane, the publication is European Journal of Organic Chemistry (2009), 4346-4351, S4346/1-S4346/33, database is CAplus.
The disproportionation reactions of various dialkyl diarylmethyl ethers were carried out in the presence of a catalytic amount (10 mol-%) of o-benzenedisulfonimide as a Broensted acid catalyst; the reaction conditions were mild, and the yields of the diarylmethane target products were good. The catalyst was easily recovered and purified, ready to be used in further reactions. The theor. study confirmed that the reaction proceeds in two steps: The formation of a carbocation from the protonated ether followed by hydride transfer. Although the hydride transfer is the rate-determining step, it is the stability of the carbocation that determines the reaction rate and therefore the yields. (© Wiley-VCH Verlag GmbH and Co. KGaA, 69451 Weinheim, Germany, 2009).
European Journal of Organic Chemistry 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 C13H10F2, Safety of Bis(4-fluorophenyl)methane.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia