Synthesis of 2,6-Diphenyl-4,4'-(1-methylethylidene)bisphenol and 2,2',6,6'-Tetraphenyl-4,4'-(1-methylethylidene)bisphenol

Article abstract of DOI:10.1055/s-1989-27295

Transalkylation of 4,4'-(1-methylethylidene)bisphenol (2a) with 2,6-diphenylphenol (1b) in the presence of methanesulfonic acid gives 2,2',6,6'-tetraphenyl-4,4'-(1-methylethylidene)bisphenol (2b) or the intermediate 2,6-diphenyl-4,4'-(1-methylethylidene)b