Diindeno[1,2,3,4-defg;1′,2′,3′,4′-mnop]chrysenes: solution-phase synthesis and the bowl-to-bowl inversion barrier†‡
Abstract
Diindeno[1,2,3,4-defg;1′,2′,3′,4′-mnop]chrysenes 2 were straightforwardly prepared in around 20% yield from 9,10-diarylphenanthrenes 3 by