Sodium Hydroxide → 105607-67-8

Participants

Reaction Steps

To a solution of 0.18 mol (25 g) of 4,5-methylenedioxyphenol in 125 ml of ethyl ether, 17 ml of sulphuryl chloride are added at a temperature below 35° C. As soon as the addition is complete, the ethyl ether is evaporated off at room temperature. The dry residue thereby obtained is taken up with 2N sodium hydroxide. The mixture is filtered to remove a resin. The filtrate is acidified with 2N hydrochloric acid; the expected product precipitates. After being washed with water and dried under vacuum in the presence of phosphorus pentoxide, it is recrystallized from a cyclohexane/benzene mixture. It melts at 95° C.

Provenance & Evidence