Phosphine-Catalyzed [3+2] Annulation of Cyanoallenes

[摘要]：Cyanoallenes were successfully used in organophosphine-catalyzed [3+2]-type annulation to give cyano-substituted dihydropyrroles in good yield. Chiral phosphines were also screened, leading to some initial results in the asymmetric version of cyanoallene-based annulations.

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