N‐Heterocyclic Carbene‐Catalyzed [2+2+2] Annulation of Allenoates with Trifluoromethylketones |
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| Authors: | Lihui Sun Tong Wang Song Ye |
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| Institution: | Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | In contrast with the reported phosphine‐ and DABCO‐catalyzed 3+2] and 2+2] annulation of allenoates with trifluoromethylketone, the 2+2+2] annulation of allenoates and two molecules of trifluoromethylketone was found under the condition of N‐heterocyclic carbene catalysis. |
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| Keywords: | NHC‐catalyzed [2+2+2] annulations allenoates trifluoromethylketones |
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