Ethylene Glycol → 4,4'-(1,3-Dioxolane-2,2-diyl)diphenol

Participants

Reaction Steps

Montmorillonite clay K10 (150 g) was reacted with 99 g of dihydroxybenzophenone at 110° C. in a mixture of 242 ml of ethylene glycol/99 ml of trimethyl orthoformate while distilling a produced by-product. After a lapse of 18 hours, 66 g of trimethyl orthoformate was added to perform a synthetic reaction for 48 hours. 300 ml of ethyl acetate was added to a reactant solution, and the resulting mixture was filtered and extracted with a 2% aqueous solution of sodium hydrogen carbonate four times. Furthermore, the reactant was concentrated, and then recrystallized with dichloroethane to obtain desired 2,2-bis(4-hydroxyphenyl)-1,3-dioxolane.

Provenance & Evidence