1.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.

1.以2-基并唑和溴化钠为原料,在光照条件用氯气置换出溴化钠中的溴素,合成兽药唑中间体-2-(二溴基)-并唑氢溴酸盐。