二甲基吡喃酮溴化,反应条件是室温,时间24h,溶剂是dmf,但是为什么只能溴一段� 知乎 Template




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tomski二甲基吡喃酮溴化,反应条件是室温,时间24h,溶剂是dmf,但是为什么只能溴一段� 知乎 coloring