Benzothiazole → 3-(Prop-2-yn-1-yl)-1,3-benzothiazol-3-ium bromide

Participants

Reaction Steps

13.5 g of benzothiazole was mixed with 13.1 g of propargyl bromide. The mixture was heated at 80° to 100° C for one hour on a hot water bath to solidify it. After cooling to room temperature (about 20°- 30° C), the solid was washed with acetone to give 21 g of 3-propargylbenzothiazolium bromide, m.p. 209°- 210° C.

Provenance & Evidence