Synthetic Photochemistry. LXIV. Mild Base-Inducedretro-Benzilic-Acid Rearrangement of Isolatedproto-Photocycloadducts of Methyl 2,4-Dioxopentanoate to Terpinolene. Facile Synthesis ofα-Chamigrene andα-Chamigren-3-one
Synthetic Photochemistry. LXIV. Mild Base-Inducedretro-Benzilic-Acid Rearrangement of Isolatedproto-Photocycloadducts of Methyl 2,4-Dioxopentanoate to Terpinolene. Facile Synthesis ofα-Chamigrene andα-Chamigren-3-one