Synthesis of Modafinil (drug of the stimulant group) from Diphenylmethanol.

https://erowid.org/archive/rhodium/chemistry/adrafinil.modafinil.html

It’s a reference to a post posted earlier called “chemical rule”. They just posted a image of Diphenylmethanone which is very similar to Diphenylmethanol. The only difference is a Hydrogen Atom