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Synthesis of 4‐Aryl‐2(5H)‐furanones by Gold(I)‐Catalyzed Intramolecular Annulation |
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| Authors: | Haifeng Sun He Huang Dengyou Zhang Enguang Feng Wangke Qian Lei Zhang Kaixian Chen Hong Liu |
| Abstract: | A novel method that involves intramolecular annulation and a new type of rearrangement has been developed for the synthesis of 4‐aryl‐2(5H)‐furanones. A variety of prop‐2‐ynyl 3‐oxo‐3‐phenylpropanoates undergo annulation cyclization in the presence of chloro(triphenylphosphine)gold and trifluoromethanesulfonic to afford the desired products in moderate to high yields. |
| Keywords: | 4‐aryl‐2(5H)‐furanones gold(I) catalysts intramolecular annulations prop‐2‐ynyl 3‐oxo‐3‐phenylpropanoates |