title: Unexpected reactivity of acetylenic omega-ketoesters toward TBAF and t-BuOK; new cascade reactions affording allene and oxetane derivatives.
abstract: [reaction: see text]. The reactivity of acetylenic omega-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.
authors.affiliation: Université Louis Pasteur, Institut de Chimie-LCOS, 1, rue Blaise Pascal BP 296/R8 67008 Strasbourg Cedex, France.
authors.forename: F
authors.initials: F
authors.lastname: Wendling
authors.forename: M
authors.initials: M
authors.lastname: Miesch