title: Hydricity-promoted [1,5]-H shifts in acetalic ketenimines and carbodiimides.
abstract: 2-monosubstituted 1,3-dioxolanes and dithiolanes act as hydride-releasing fragments, transferring intramolecularly their acetalic H atom to the central carbon of ketenimine functions. The presumed products of these migrations, o-quinomethanimines, undergo in situ 6pi-electrocyclization. A computational study supports this mechanism and the hydride-shift character of the first step. Carbodiimides were also suitable substrates, although less reactive. [reaction: see text].
authors.affiliation: Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo 30100, Murcia, Spain. alajarin@um.es
authors.forename: Mateo
authors.initials: M
authors.lastname: Alajarín
authors.forename: Baltasar
authors.initials: B
authors.lastname: Bonillo
authors.forename: María-Mar
authors.initials: MM
authors.lastname: Ortín
authors.forename: Pilar
authors.initials: P
authors.lastname: Sánchez-Andrada
authors.forename: Angel
authors.initials: A
authors.lastname: Vidal