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- W2952804675 abstract "On treatment with boron trifluoride etherate as a Lewis acid, acetophenone and benzophenone derivatives bearing a prenyl (or a related) side chain in ortho-position were shown to undergo intramolecular carbonyl-olefin metathesis, in the absence of any transition-metal catalyst. The cationic cyclization process is supposed to proceed via an oxetane intermediate, which fragments to give the cyclization product (indene or 1,2-dihydronaphthalene) and a ketone (acetone) as a stoichiometric by-product. Several substrates were shown to afford the metathesis products with up to 93% yield." @default.
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- W2952804675 date "2011-09-19" @default.
- W2952804675 modified "2023-10-17" @default.
- W2952804675 title "Metal-Free Intramolecular Carbonyl-Olefin Metathesis of ortho-Prenylaryl Ketones" @default.
- W2952804675 doi "https://doi.org/10.1055/s-0030-1260320" @default.
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