N‐Heterocyclic Carbene‐Catalyzed [3+3] Annulation of Indoline‐2‐thiones with Bromoenals: Synthesis of Indolo[2,3‐b]dihydrothiopyranones
Advanced Synthesis and Catalysis(2017)
摘要
The N‐heterocyclic carbene‐catalyzed [3+3] annulation of indoline‐2‐thiones and bromoenals has been developed, giving the corresponding indolo[2,3‐b]dihydrothiopyranones in high yields.
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关键词
annulation reaction,dihydrothiopyranones,indoles,N-heterocyclic carbene catalysis
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