Biarylphosphonite Gold(I) Complexes as Superior Catalysts for Oxidative Cyclization of Propynyl Arenes into Indan-2-ones


  • We are deeply appreciative for financial support from the Ecole Polytechnique to G. Henrion and thank Rhodia Chimie Fine (Dr. F. Metz) for a generous gift of HNTf2.


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Striking gold: A series of variously functionalized propynyl arenes was smoothly converted into indan-2-ones by a new gold(I)-catalyzed oxidative cyclization process. [LAu]NTf2 (Tf=trifluoromethanesulfonyl) is a superior catalyst both in terms of yield and kinetics for the present transformation.