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A direct metal-free method for the synthesis of perfluoroalkylated indolizines by means of DIPEA-promoted tandem CN/CC bond formation was developed. Various substituted pyridines and bromoacetyl derivatives with methyl perfluoroalk-2-ynoates proceeded smoothly in this mild transformation, and the desired products were obtained in good to excellent yields under air.
We have developed a practical example of metal-free iodine-promoted decarboxyltive couplings between cinnamic acids and sodium benzene sulfinates, which represents an effective synthesis of vinyl sulfones via C–S bond formation reaction.
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