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Synthesis of Oxazocenones via Gold(I)-Catalyzed 8-Endo-Dig Hydroalkoxylation of Alkynamides

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posted on 08.01.2016, 12:06 by Stephen S. Scully, Shao-Liang Zheng, Bridget K. Wagner, Stuart L. Schreiber
Several benzoxazocenones have been found to exhibit novel cellular activities. In the present study, we report a gold­(I)-catalyzed 8-endo-dig hydroalkoxylation reaction of alkynamides to access analogous oxazocenone scaffolds. This methodology provided an advanced intermediate, which was elaborated to a des-benzo analog of a bioactive benzoxazocenone.