Hydrochloric Acid → 2-Dibenzothiophenecarboxylic acid

Participants

Reaction Steps

2-Acetyldibenzothiophene (2.24 g.), sodium hypochlorite solution, (47 ml. containing 5.7% available chlorine), normal sodium hydroxide solution (50 ml.) and dioxan (50 ml.), were heated on a steam bath with stirring for 5 hr. The mixture was acidified with excess hydrochloric acid, and the precipitated colourless solid filtered off, washed with water, and recrystallise twice from acetic acid to give dibenzothiophene-2-carboxylic acid, m.pt. 281°-283° C.

Provenance & Evidence