HCID 69247959, compound → HCID 69250567, compound

Participants

Reaction Steps

44.44 g (0.08 mol) of 5-bromo-1,2,3,4-tetraphenyl-5-p-methoxyphenylcyclopenta-1,3-diene in 400 ml of concentrated HBr were refluxed for 24 h. The product was filtered off with suction and washed with water. It was recrystallized in toluene. (Yield: 35.05 g (81%); elemental analysis for C35H25OBr: found: C, 77.60%, H, 4.58%. calculated: C, 77.64%, H, 4.65%).

Provenance & Evidence