title: Insertion of benzynes into the P═N Bond of P-alkenyl(alkynyl)-λ5-phosphazenes.
abstract: Benzynes, generated from 2-(trimethylsilyl)phenyl triflates, have been found to react with P-Alkenyl-λ(5)-phosphazenes via a formal π-insertion into the P═N bond. A subsequent retro [2 + 2] cycloaddition/6π electrocyclization/protonation cascade explains the formation of the resulting 1,4-benzazaphosphorinium triflates. P-Alkynyl λ(5)-phosphazenes and phosphane sulfides undergo similar transformations.
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: Alajarin
authors.forename: Carmen
authors.initials: C
authors.lastname: Lopez-Leonardo
authors.forename: Rosalia
authors.initials: R
authors.lastname: Raja
authors.forename: Raul-Angel
authors.initials: RA
authors.lastname: Orenes