Carbon - oxygen coupling reactions with 2,2′,3,3′,5,5′-hexaphenyl-(1,1′-biphenyl)-4,4′-dioxyl

1,3,5-Tris[(2-hydroxy-3,5-diphenyl)phenyl]benzene and its Phenoxyl Radicals

“…Even the biradical 12 needs high temperatures and long reaction times to form the subsequent products 13 and 14. [50] Therefore, a phenoxyl radical [51] formed from 4 is less likely to attack the unsubstituted phenyl ring in the ortho position. One must rather assume that the trisubstituted (activated?)…”