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  • Title: Construction of Bisbenzopyrone via N-Heterocyclic Carbene Catalyzed Intramolecular Hydroacylation-Stetter Reaction Cascade.
    Author: Zhao M, Liu JL, Liu HF, Chen J, Zhou L.
    Journal: Org Lett; 2018 May 04; 20(9):2676-2679. PubMed ID: 29672064.
    Abstract:
    An efficient synthesis of bisbenzopyrones by a N-heterocyclic carbene (NHC)-catalyzed intramolecular hydroacylation-Stetter reaction cascade has been developed. A series of symmetrical and unsymmetrical bisbenzopyrones were obtained with good to excellent yields. Bisbenzopyran-4-ol was synthesized efficiently.
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