A simple, one-step, conversion of aniline into benzyne
Abstract
Reaction of aniline with acetic anhydride, pentyl nitrite, and 2,3,4,5-tetraphenylcyclopentadienone, in benzene, gives the corresponding benzyne adduct (32%) while p-chlorobenzoyl nitrite and preformed acetanilide gives the adduct in 50.5% yield.