Highly sensitive functionalized 2-vinylidene-hydrofurans undergo a facile, clean and chemoselective Pd(0)-catalyzed isomerization leading to stable and valuable 3-oxa-1,3-dienes precursor of polycyclic systems found in bioactive natural products through Diels-Alder reaction.
2-vinylidenehydrofurans - Pd(0)-catalyzed isomerization - 3-oxa-1,3-dienes - Diels-Alder