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  • Title: Versatile and expeditious synthesis of aurones via Au I-catalyzed cyclization.
    Author: Harkat H, Blanc A, Weibel JM, Pale P.
    Journal: J Org Chem; 2008 Feb 15; 73(4):1620-3. PubMed ID: 18193886.
    Abstract:
    Aurones are conveniently formed in a three-step procedure including a goldI-catalyzed cyclization of 2-(1-hydroxyprop-2-ynyl)phenols as a highly regio- and stereoselective key step. A wide diversity of derivatives can be obtained starting from substituted salicylaldehydes. Synthesis of natural 4,6,3',4'-tetramethoxyaurone and structure revision of two natural products (dalmaisione D and 4'-chloroaurone) were achieved.
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