Palladium-Catalyzed Coupling of Naphthoquinone Triflates with Stannanes. Unprecedented Nucleophilic Aromatic Substitution on a Hydroxynaphthoquinone Triflate

Abstract

This work was supported by the
\nDGICYT (Project PB-94-0163). OÄ .F. is a recipient of a
\npredoctoral fellowship by the Ministerio de Educación
\ny Ciencia. We acknowledge Dr. A. M. Castaño for the
\ndevelopping of conditions for the bistriflation of naphthazarin