Bisphenol A → HCID 178447687, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 272 g (1.2 mole) of phenyl neopentyl phosphite, 126 g (0.55 mole) of bisphenol-A (BPA) and 1 g of sodium methoxide were heated together in a round-bottom flask. The temperature of the reaction vessel was raised to 130° C. and a vacuum was applied. Phenol was distilled over at 90° C. head temperature at 35 mm. The temperature was raised slowly to 160° C. and the vacuum increased to 0.2 mm Hg to remove any remaining phenol and unreacted phenyl neopentyl phosphite. The proton NMR spectrum of the product recovered showed the methyl protons at 0.77, 1.30 and 1.65 δ (18.1 hydrogens), the methylene protons at 3.67 and 4.30 δ (7.2 hydrogens) and the aromatic protons from 6.7-7.3 δ (8.7 hydrogens). This bisphosphite had the following structure: ##STR3##

Provenance & Evidence