Abstract
A novel and regioselective ammonium iodide mediated CS bond formation protocol involving flavones and sulfonyl chlorides to generate different ArS-substituted flavone derivatives in high yields was developed. Different from existing metal-free CS bond formation protocols with the use of PPh3 or I2 as the catalyst, this method provides an alternative way of constructing CS bonds through the use of NH4I as a catalyst, which makes it highly valuable for the efficient synthesis of thioether compounds.
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