Trifluoroacetic acid → HCID 66797821, compound

Participants

Reaction Conditions

Reaction Steps

20.0 g (24.4 mmol) of tert-butyl 7-{4-[biphenyl-4-yl-(9,9-dimethyl-9H-fluoren-2-yl)amino]phenyl}-12,12-dimethyl-12H-10-azaindeno[2,1-b]fluorene-10-carboxylate are dissolved in 250 ml of dichloromethane and 2.65 ml (24.4 mmol) of anisole, and 5.4 ml of trifluoroacetic acid are subsequently added. The mixture is stirred at 40° C. for 3 h and, when the reaction is complete, neutralised by means of ice-water and 20% NaOH solution. The mixture is extracted with dichloromethane, dried and purified by recrystallisation from toluene/heptane, giving 15.7 g (89%) of the product as a white solid.

Provenance & Evidence