Bisphenol A → Ether phthalimide

Participants

Reaction Steps

Reaction was effected between equal molar amounts of bisphenol-A and sodium methoxide in anhydrous methanol. A mixture of 1.99 part of the resulting sodium bisphenoxide salt, 3.02 part of 4-nitro-N-methylphthalimide, 4.71 parts of tetrabutylammonium bromide which was 2 equivalents, and about 21 parts of toluene, was heated at reflux under nitrogen for 22 hours. The reaction mixture was cooled to room temperature and was extracted with a mixture of methylene chloride and 1.2 normal HCl. The resulting organic solution was dried and concentrated. The resulting mixture was stirred with methanol and filtered resulting in 2.35 parts of an ether phthalimide of the formula, ##STR7## having a melting point of 145°-147° C.

Provenance & Evidence