Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

• 以2-乙酰基苯并咪唑和溴化钠为原料,在光照条件下用氯气置换出溴化钠中的溴素,合成兽药噻苯咪唑中间体-2-(二溴乙酰基)-苯并咪唑氢溴酸盐。