Selective Dimerization of Lewis‐Acid/Base‐Stabilized Phosphanylalanes. Issue 3 (23rd November 2012)

• Record Type: Journal Article
• Authors: Bodensteiner, Michael; Timoshkin, Alexey Y.; Peresypkina, Eugenia V.; Vogel, Ulf; Scheer, Manfred
• Is Part Of: Chemistry. Volume 19:Issue 3(2013)
• Page Start: 957
• Page End: 963
• Publication Date: 2012-11-23
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201203074
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The reaction of [{(CO)₅W}PRH₂] (R=H, Ph) with H₃Al<bold>⋅</bold>NR₃ (R=Et, Me) leads to the formation of four‐membered heterocyclic compounds [({(CO)₅W}P(H)AlH<bold>⋅</bold> NEt₃)₂] and [({(CO)₅W}PhPAlH<bold>⋅</bold> NMe₃)₂]. Upon dissolving the solid compounds, fast equilibria between the isomers are observed on the NMR timescale. Further insight into the stability and reactivity of the isomers was gained by applying theoretical methods. DFT calculations predict that hydrogen elimination in the case of [({(CO)₅W}PhPAlH<bold>⋅</bold>NMe₃)₂] may be reversible.</p> </abstract>