Phenol → 3,3'-Bis(4-hydroxyphenyl)(5,5',7,7'-tetramethyl)-1,1'-biadamantane

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

Into a 5 liter four-necked separable flask equipped with a thermometer, a stirrer, an inlet for nitrogen gas and a reflux condenser, 48.4 g (0.1 mole) of 3,3′-dibromo-5,5′,7,7′-tetramethyl-1,1′-biadamantane and 688 g (7.3 moles) of phenol were placed, and the resultant mixture was heated under the refluxing condition at 155° C. for 30 minutes. After the mixture was cooled at the room temperature, 4.3 liters of pure water was added, and the obtained mixture was heated under the refluxing condition at 80° C. for 10 minutes. The formed precipitates were separated by filtration, and the solid substance was mixed with 7 liters of pure water and stirred for 10 minutes. The solid substance was separated by filtration and dried at 60° C. under a reduced pressure for 24 hours, and 50.6 g of 3,3′-bis(4-hydroxyphenyl)(5,5′,7,7′-tetramethyl)-1,1′-biadamantane was obtained (the yield: 99%).

Herkunft & Nachweise