functionalized β,β-dichloroenones and β,β-dibromoenones was achieved via the Fe-catalyzed radical induced reaction between silyl enol ethers and carbon tetrachloride, bromotrichloromethane or carbon tetrabromide in moderate to good yields. This reaction proceeds through addition of the trichloromethyl or tribromomethyl radical group to the CC bond of the silyl enol ethers and subsequent base-induced elimination
通过甲
硅烷基烯醇醚与
四氯化碳、
溴三
氯甲烷或
四溴化碳之间的 Fe 催化自由基诱导反应,以中等至良好的收率实现了功能化β,β-二
氯烯酮和β,β-二
溴烯酮的高效一步合成。该反应通过将三
氯甲基或三
溴甲基自由基添加到甲
硅烷基烯醇醚的 C C 键上并随后在温和条件下进行碱诱导消除来进行。