title: Methyl, ethyl, isopropyl and tert-butyl 3-oxo-2-(triphenylphosphoranylidene)butyrates, a common pattern for a preferred conformation.
authors.affiliation: Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago, Chile.
authors.forename: F
authors.initials: F
authors.lastname: Castañeda
authors.forename: C A
authors.initials: CA
authors.lastname: Terraza
authors.forename: M T
authors.initials: MT
authors.lastname: Garland
authors.forename: C A
authors.initials: CA
authors.lastname: Bunton
authors.forename: R F
authors.initials: RF
authors.lastname: Baggio