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Selective Dimerization of Lewis‐Acid/Base‐Stabilized Phosphanylalanes
Author(s) -
Bodensteiner Michael,
Timoshkin Alexey Y.,
Peresypkina Eugenia V.,
Vogel Ulf,
Scheer Manfred
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201203074
Subject(s) - chemistry , reactivity (psychology) , lewis acids and bases , dissolution , medicinal chemistry , base (topology) , nuclear magnetic resonance spectroscopy , computational chemistry , stereochemistry , organic chemistry , catalysis , medicine , mathematical analysis , alternative medicine , mathematics , pathology
The reaction of [{(CO) 5 W}PRH 2 ] (R=H, Ph) with H 3 Al ⋅ NR 3 (R=Et, Me) leads to the formation of four‐membered heterocyclic compounds [({(CO) 5 W}P(H)AlH ⋅ NEt 3 ) 2 ] and [({(CO) 5 W}PhPAlH ⋅ NMe 3 ) 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) 5 W}PhPAlH ⋅ NMe 3 ) 2 ] may be reversible.