Abstract Facile sp 3 C H bond activation of toluene, p-xylene and mesitylene, was photochemically promoted by trans-Pt (CH 2 CMe 2 Et) Br (PPh 3) 2 leading to trans-Pt (CH 2 Ar) Br (PPh 3) 2 quantitatively, while regioselective sp 3 C H bond cleavage at the benzylic position of ethylbenzene and cumene readily took place to yield styrene and α- methylstyrene, respectively. A possible reaction mechanism involving radical process is ...
