反应详情

To a 50 mL flask were added 0.5 g of 5,5′-Bis(t-butyl)-3,3′,6,6′-tetramethyl-2,2′-biphenol, 5 mL of xylenes and 0.05 g of p-toluenesulfonic acid. The mixture was refluxed for about 2 hours. The mixture was cooled and water added. The mixture was extracted with hexanes; the organic layer was washed with water and dried over MgSO4. After removing the solvent, the residue was recrystallized from petroleum ether.

1. temperatureThe mixture was refluxed for about 2 hours
2. temperatureThe mixture was cooled
3. extractionThe mixture was extracted with hexanes
4. washthe organic layer was washed with water
5. dry with materialdried over MgSO4
6. customAfter removing the solvent
7. customthe residue was recrystallized from petroleum ether