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Unexpected Reactivity of Acetylenic ω-Ketoesters toward TBAF and t-BuOK; New Cascade Reactions Affording Allene and Oxetane Derivatives

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journal contribution
posted on 20.07.2001, 00:00 by Florence Wendling, Michel Miesch
The reactivity of acetylenic ω-ketoesters toward tetra-n-butylammonium fluoride and potassium tert-butoxide was studied. These cascade reactions proceeded smoothly and afforded either electrophilic allene derivatives or highly functionalized oxetane derivatives in moderate to high yields.