title: Platinum- and gold-catalyzed hydrative carbocyclization of oxo diynes for one-pot synthesis of benzopyrones and bicyclic spiro ketones.
abstract: We report a one-pot synthesis of benzopyrones and tricyclic spiroketones from hydrative carbocyclization of oxodiyne substrates catalyzed by PtCl2 and PPh3AuCl/AgOTf, respectively. The distinct carbocyclizations with Pt and Au catalysts stem from their altered regioselectivity in the oxo-assisted hydration of the neighboring alkyne carbons.
authors: Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC.
authors: Arindam
authors: A
authors: Das
authors: Hsu-Kai
authors: HK
authors: Chang
authors: Cheng-Hua
authors: CH
authors: Yang
authors: Rai-Shung
authors: RS
authors: Liu