Sodium Sulfite → Disodium

Participants

Reaction Steps

To a solution of 250 ml. of anhydrous ethanol and 0.12 moles of sodium sulfite is added 0.1 moles α-chloro-6-methoxy-2-naphthylacetic acid, sodium salt. The reaction mixture is stirred for 15 hours, filtered and the residue worked with ethanol. The filtrate is evaporated to dryness to obtain α-sulfo-6-methoxy-2-naphthylacetic acid, disodium salt.

Provenance & Evidence