Details

Autor(en) / Beteiligte

• van Dijk, Tom
• Burck, Sebastian
• Rong, Mark K.
• Rosenthal, Amos J.
• Nieger, Martin
• Slootweg, J. Chris
• Lammertsma, Koop

Titel

Facile Synthesis of Phosphaamidines and Phosphaamidinates using Nitrilium Ions as an Imine Synthon

Ist Teil von

• Angewandte Chemie (International ed.), 2014-08, Vol.53 (34), p.9068-9071

Auflage

International ed. in English

Ort / Verlag

Weinheim: WILEY-VCH Verlag

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Readily accessible nitrilium triflates are convenient imine building blocks for the expedient synthesis of a novel class of 1,3‐P,N ligands as demonstrated for the reaction with primary phosphanes. This procedure allows variation of all substituents. X‐ray crystal structures are reported for nitrilium ions, phosphaamidines, and three phosphaamidinate complexes. The lithium phosphaamidinate is N coordinated and its reaction with [AuCl(tht)] (tht=tetrahydrothiophene) gives a unique P‐bridged gold trimer, while a P,N‐bidentate complex results from [{RhCl(cod)}2]. The nitrilium ion methodology allows extension of the 1,3‐P,N motive to bis(imino)phosphanes, which are the neutral phosphorus analogues of the valuable β‐diketiminate ligand. P bridges: Readily accessible nitrilium triflates are convenient imine building blocks for the expedient synthesis of phosphaamidines as demonstrated for the reaction with primary phosphanes (see Scheme). Lithiation of these species provides access to phosphaamidinates, of which the coordination to [AuCl(tht)] gives a unique P‐bridged gold trimer, while [{RhCl(cod)}2] gives bidentate coordination. cod=1,5‐cyclooctadiene, tht=tetrahydrothiophene.