title: The reactivity of silylated amino(dichloro)phosphanes in the presence of silver salts.
abstract: New cyclic and acylic phosphorus-nitrogen compounds have been synthesized in reactions of Hyp-N(SiMe3)PCl2 (hypersilyl = Hyp = (Me3Si)3Si) with silver salts of the perfluorinated anions [CF3CO2](-), [CF3SO3](-), and [C6F5](-). Depending on the choice of the silver salt, not only AgCl but also Me3SiCl elimination could be observed, leading to a transient highly reactive 1,3 dipole molecule. This 1,3 dipole molecule was found to be a key species, which can undergo [3 + 2] cyclization, when a dipolarophile such as acetonitrile is present. Also, dimerization or even cyclo-tetramerization are observed. The occurrence of different reaction channels demonstrates that the hypersilyl moiety can act as a highly reactive functional group. All new compounds have been characterized by single-crystal X-ray diffraction studies.
authors.affiliation: Institut für Chemie Universität Rostock , 18059 Rostock, Germany , A.-Einstein-Str. 3a.
authors.forename: Axel
authors.initials: A
authors.lastname: Schulz
authors.forename: Alexander
authors.initials: A
authors.lastname: Villinger
authors.forename: Andrea
authors.initials: A
authors.lastname: Westenkirchner